Item 16. FORM 10-K SUMMARY.

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Item 16. FORM 10-K SUMMARY.

None.

EXHIBIT INDEX


Exhibit No.	Registrant	Exhibit

		Articles of Incorporation and Bylaws

3.1	UAL	Amended and Restated Certificate of Incorporation of United Airlines Holdings, Inc. (filed as Exhibit 3.1 to UAL's Form 8-K filed June 27, 2019 and incorporated herein by reference)

3.2	UAL	Amended and Restated Bylaws of United Airlines Holdings, Inc. (filed as Exhibit 3.1 to UAL's Form 8-K filed September 23, 2022 and incorporated herein by reference)

3.3	UAL	Certificate of Designation of the Series A Junior Participating Serial Preferred Stock of United Airlines Holdings, Inc. (filed as Exhibit 3.1 to UAL's Registration Statement on Form 8-A filed December 7, 2020 and incorporated herein by reference)

3.4	United	Amended and Restated Certificate of Incorporation of United Airlines, Inc. (filed as Exhibit 3.1 to UAL's Form 8-K filed April 3, 2013 and incorporated herein by reference)

3.5	United	Amended and Restated By-laws of United Airlines, Inc. (filed as Exhibit 3.2 to UAL's Form 8-K filed April 3, 2013 and incorporated herein by reference)

		Instruments Defining Rights of Security Holders, Including Indentures

4.1	UAL United	Indenture, dated as of May 7, 2013, among United Continental Holdings, Inc., United Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A., as Trustee (filed as Exhibit 4.1 to UAL's Form 8-K filed on May 10, 2013 and incorporated herein by reference)

4.2	UAL United	Third Supplemental Indenture, dated as of January 26, 2017, among United Continental Holdings, Inc., United Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A., as Trustee, providing for the issuance of 5.000% Senior Notes due 2024 (filed as Exhibit 4.2 to UAL's Form 8-K filed January 27, 2017 and incorporated herein by reference)


4.3	UAL United	Form of 5.000% Senior Notes due 2024 (filed as Exhibit A to Exhibit 4.2 to UAL's Form 8-K filed January 27, 2017 and incorporated herein by reference)

4.4	UAL United	Form of Notation of Note Guarantee (filed as Exhibit B to Exhibit 4.2 to UAL's Form 8-K filed January 27, 2017 and incorporated herein by reference)

4.5	UAL United	Fourth Supplemental Indenture, dated as of September 29, 2017, among United Continental Holdings, Inc., United Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A., as Trustee, providing for the issuance of 4.250% Senior Notes due 2022 (filed as Exhibit 4.2 to UAL's Form 8-K filed October 4, 2017 and incorporated herein by reference)

4.6	UAL United	Form of 4.250% Senior Notes due 2022 (filed as Exhibit A to Exhibit 4.2 to UAL's Form 8-K filed October 4, 2017 and incorporated herein by reference)

4.7	UAL United	Form of Notation of Note Guarantee (filed as Exhibit B to Exhibit 4.2 to UAL's Form 8-K filed October 4, 2017 and incorporated herein by reference)

4.8	UAL United	Fifth Supplemental Indenture, dated as of May 9, 2019, among United Continental Holdings, Inc., United Airlines, Inc. and The Bank of New York Mellon Trust Company, N.A., as Trustee (filed as Exhibit 4.2 to UAL's Form 8-K filed May 10, 2019 and incorporated herein by reference)

4.9	UAL United	Form of 4.875% Senior Notes due 2025 (filed as Exhibit A to Exhibit 4.2 to UAL's Form 8-K filed May 10, 2019 and incorporated herein by reference)

4.10	UAL United	Form of Notation of Note Guarantee (filed as Exhibit B to Exhibit 4.2 to UAL's Form 8-K filed May 10, 2019 and incorporated herein by reference)

4.11	UAL United	Promissory Note, dated as of April 20, 2020, among United Airlines Holdings, Inc., United Airlines, Inc., as guarantor, and the United States Department of the Treasury (filed as Exhibit 4.1 to UAL's Form 8-K filed April 23, 2020 and incorporated herein by reference)

4.12	UAL	Warrant Agreement (including Form of Warrant), dated as of April 20, 2020, between United Airlines Holdings, Inc. and the United States Department of the Treasury (filed as Exhibit 4.2 to UAL's Form 8-K filed April 23, 2020 and incorporated herein by reference)

4.13	UAL United	Indenture (including Form of 6.50% Senior Secured Notes due 2027), dated as of July 2, 2020, by and among Mileage Plus Holdings, LLC, Mileage Plus Intellectual Property Assets, Ltd., the guarantors named therein and Wilmington Trust, National Association, as trustee and collateral custodian, governing the 6.50% Senior Secured Notes due 2027 (filed as Exhibit 4.1 to UAL's Form 8-K filed July 2, 2020 and incorporated herein by reference)

4.14	UAL United	Warrant Agreement, dated as of September 28, 2020, between United Airlines Holdings, Inc. and The United States Department of the Treasury (filed as Exhibit 4.1 to UAL's Form 8-K filed September 30, 2020 and incorporated herein by reference)

4.15	UAL	Form of Warrant (filed as Exhibit 4.2 to UAL's Form 8-K filed September 30, 2020 and incorporated herein by reference)

4.16	UAL United	Promissory Note, dated as of January 15, 2021, among United Airlines Holdings, Inc., United Airlines, Inc., as guarantor, and the United States Department of the Treasury (filed as Exhibit 4.1 to UAL's Form 8-K filed January 20, 2021 and incorporated herein by reference)

4.17	UAL	Warrant Agreement, dated as of January 15, 2021, between United Airlines Holdings, Inc. and the United States Department of the Treasury (filed as Exhibit 4.2 to UAL's Form 8-K filed January 20, 2021 and incorporated herein by reference)



4.18	UAL	Form of Warrant (filed as Annex B to Exhibit 4.2 to UAL's Form 8-K filed January 20, 2021 and incorporated herein by reference)

4.19	UAL United	Indenture, dated as of April 21, 2021, among United Airlines, Inc., United Airlines Holdings, Inc. and Wilmington Trust, National Association, as trustee and as collateral trustee (filed as Exhibit 4.1 to UAL's Form 8-K filed April 22, 2021 and incorporated herein by reference)

4.20	UAL United	Form of 4.375% Senior Secured Notes due 2026 (filed as Exhibit A to Exhibit 4.1 to UAL's Form 8-K filed April 22, 2021 and incorporated herein by reference)

4.21	UAL United	Form of Notation of Guarantee (filed as Exhibit E to Exhibit 4.1 to UAL's Form 8-K filed April 22, 2021 and incorporated herein by reference)

4.22	UAL United	Form of 4.625% Senior Secured Notes due 2029 (filed as Exhibit A to Exhibit 4.1 to UAL's Form 8-K filed April 22, 2021 and incorporated herein by reference)

4.23	UAL United	Form of Notation of Guarantee (filed as Exhibit E to Exhibit 4.1 to UAL's Form 8-K filed April 22, 2021 and incorporated herein by reference)

4.24	UAL United	Promissory Note, dated as of April 29, 2021, among United Airlines Holdings, Inc., United Airlines, Inc., as guarantor, and the United States Department of the Treasury (filed as Exhibit 4.1 to UAL's Form 8-K filed April 30, 2021 and incorporated herein by reference)

4.25	UAL	Warrant Agreement, dated as of April 29, 2021, between United Airlines Holdings, Inc. and the United States Department of the Treasury (filed as Exhibit 4.2 to UAL's Form 8-K filed April 30, 2021 and incorporated herein by reference)

4.26	UAL	Form of Warrant (filed as Annex B to Exhibit 4.2 to UAL's Form 8-K filed April 30, 2021 and incorporated herein by reference)

4.27	UAL	Tax Benefits Preservation Plan, dated as of December 4, 2020, by and between United Airlines Holdings, Inc. and Computershare Trust Company, N.A., as rights agent (which includes the Form of Rights Certificate as Exhibit B thereto) (filed as Exhibit 4.1 to UAL's Registration Statement on Form 8-A filed December 7, 2020 and incorporated herein by reference)

4.28	UAL	Amendment No. 1 to Tax Benefits Preservation Plan , dated as of January 21, 2021, by and betwe en United A irlines Holdings, Inc. and Computershare Trust Company, N.A (filed as Exhibit 4.18 to UAL's Form 10-K for the year ended December 31, 2020 and incorporated herein by reference)

4.29	UAL	Amendment No. 2 to Tax Benefits Preservation Plan, dated as of December 4, 2023, by and between United Airlines Holdings, Inc. and Computershare Trust Company, N.A., as rights agent (incorporated by reference to Exhibit 4.3 to UAL’s Form 8-A/A filed on December 4, 2023 and incorporated herein by reference)

4.30	UAL United	Description of the Registrant's Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934

		Material Contracts

†10.1	UAL	Agreement, dated as of April 19, 2016, by and among PAR Capital Management, Inc., Altimeter Capital Management, LP, United Continental Holdings, Inc. and the other signatories listed on the signature page thereto (filed as Exhibit 10.1 to UAL's Form 8-K filed April 20, 2016 and incorporated herein by reference)



†10.2	UAL	United Airlines Holdings, Inc. Profit Sharing Plan (amended and restated effective January 1, 2023)

†10.3	UAL United	SERP Agreement, dated as of October 1, 2010, by and among United Continental Holdings, Inc., Continental Airlines, Inc. and Gerald Laderman (filed as Exhibit 10.2 to UAL's Form 10-Q for the quarter ended September 30, 2015 and incorporated herein by reference)

†10.4	UAL United	Stock Option Award Notice, dated as of December 4, 2019, to J. Scott Kirby pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan (filed as Exhibit 10.2 to UAL's Form 8-K filed December 6, 2019 and incorporated herein by reference)

†10.5	UAL	Form of Stock Option Award Notice pursuant to the United Continental Holdings, Inc. 2008 Incentive Compensation Plan (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended September 30, 2016 and incorporated herein by reference)

†10.6	UAL	United Continental Holdings, Inc. Officer Travel Policy (filed as Exhibit 10.24 to UAL's Form 10-K for the year ended December 31, 2010 and incorporated herein by reference)

†10.7	UAL	United Continental Holdings, Inc. 2008 Incentive Compensation Plan (filed as Annex A to UAL's Definitive Proxy Statement filed April 26, 2013 and incorporated herein by reference) (now named the United Continental Holdings, Inc. 2008 Incentive Compensation Plan)

†10.8	UAL	First Amendment to the United Continental Holdings, Inc. 2008 Incentive Compensation Plan (changing the name to United Continental Holdings, Inc. 2008 Incentive Compensation Plan) (filed as Annex A to UAL's Definitive Proxy Statement filed April 26, 2013 and incorporated herein by reference)

†10.9	UAL	Second Amendment to the United Continental Holdings, Inc. 2008 Incentive Compensation Plan (filed as Exhibit 10.19 to UAL's Form 10-K for the year ended December 31, 2016 and incorporated herein by reference)

†10.10	UAL	United Air Lines, Inc. Management Cash Direct & Cash Match Program (amended and restated effective January 1, 2016) (filed as Exhibit 10.28 to UAL's Form 10-K for the year ended December 31, 2018 and incorporated herein by reference)

†10.11	UAL	United Continental Holdings, Inc. Executive Severance Plan (effective October 1, 2014) (filed as Exhibit 10.1 to UAL's Form 8-K filed June 20, 2014 and incorporated herein by reference)

†10.12	UAL	United Continental Holdings, Inc. 2017 Incentive Compensation Plan (filed as Exhibit 10.1 to UAL's Form 8-K filed May 30, 2017 and incorporated herein by reference)

†10.13	UAL	Form of Restricted Stock Unit Award Notice pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan (filed as Exhibit 10.6 to UAL's Form 10-Q for the quarter ended June 30, 2017 and incorporated herein by reference)

†10.14	UAL	Form of Stock Option Award Notice pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan (filed as Exhibit 10.7 to UAL's Form 10-Q for the quarter ended June 30, 2017 and incorporated herein by reference)

†10.15	UAL	Form of Long-term Contingent Cash Award Notice (filed as Exhibit 10.23 to UAL's Form 10-K for the year ended December 31, 2020 and incorporated herein by reference)

†10.16	UAL	United Airlines Holdings, Inc. 2006 Director Equity Incentive Plan (as amended and restated, effective May 24, 2023) (filed as Exhibit 10.2 to UAL's Form 8-K filed May 30, 2023 and incorporated herein by reference)



†10.17	UAL	Form of Share Unit Award Notice pursuant to the United Continental Holdings, Inc. 2006 Director Equity Incentive Plan (for awards granted on or after June 2011) (filed as Exhibit 10.9 to UAL's Form 10-Q for the quarter ended June 30, 2014 and incorporated herein by reference)

†10.18	UAL	United Airlines Holdings, Inc. Amended and Restated 2021 Incentive Compensation Plan (filed as Exhibit 10.1 to UAL's Form 8-K filed May 28, 2021 and incorporated herein by reference)

†10.19	UAL	First Amendment to United Airlines Holdings, Inc. Amended and Restated 2021 Incentive Compensation Plan (filed as Exhibit 10.1 to UAL 's Form 8-K filed May 30, 2023 and incorporated herein by reference)

†10.20	UAL	Form of Restricted Stock Unit Award Notice pursuant to the 2021 Incentive Compensation Plan (filed as Exhibit 10.16 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

†10.21	UAL	Form of Performance-Based RSU Award Notice pursuant to the 2021 Incentive Compensation Plan (filed as Exhibit 10.17 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

†10.22	UAL	Form of Short-term Incentive Award Notice pursuant to the United Airlines Holdings, Inc. 2021 Incentive Compensation Plan (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended March 31, 2022 and incorporated herein by reference)

†10.23	UAL	Form of Performance-Based RSU Award Notice pursuant to the United Airlines Holdings, Inc. 2021 Incentive Compensation Plan (filed as Exhibit 10.2 to UAL's Form 10-Q for the quarter ended March 31, 2022 and incorporated herein by reference)

†10.24	UAL	Form of Cash Transformation Incentive Award Notice pursuant to the United Airlines Holdings, Inc. 2021 Incentive Compensation Plan (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended September 30, 2022 and incorporated herein by reference)

†10.25	UAL United	Form of Retirement and Transition Agreement

†10.26	UAL United	Offer Letter, dated as of September 20, 2023, between United Airlines Holdings, Inc., United Airlines, Inc. and Michael Leskinen (filed as Exhibit 10.38 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.27	UAL United	Amended and Restated A350-900 Purchase Agreement, dated as of September 1, 2017, including letter agreements related thereto, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended September 30, 20 23 and incorporated herein by reference)

^10.28	UAL United	Amendment No. 1, dated as of July 18, 2019, to the Amended and Restated A350-900 Purchase Agreement, dated as of September 1, 2017, including letter agreements related thereto, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended September 30, 2019 and incorporated herein by reference)

^10.29	UAL United	Amendment No. 2, dated as of December 3, 2019, to the Amended and Restated A350-900 Purchase Agreement, dated as of September 1, 2017, including letter agreements related thereto, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.42 to UAL's Form 10-K for the year ended December 31, 2019 and incorporated herein by reference)


^10.30	UAL United	Amendment No. 3, dated as of December 8, 2022, to the Amended and Restated A350-900 Purchase Agreement, dated as of September 1, 2017, including letter agreements related thereto, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.35 to UAL’s Form 10-K for the year ended December 31, 202 2 and incorporated herein by reference)

^10.31	UAL United	Amendment No. 4 to the Amended and Restated A350-900 Purchase Agreement between Airbus S.A.S. and United Airlines, Inc., effective as of September 29, 2023 (filed as Exhibit 10.36 to UAL’s Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.32	UAL United	Aircraft General Terms Agreement, dated as of October 10, 1997, by and among Continental Airlines, Inc. and The Boeing Company (filed as Exhibit 10.2 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.33	UAL United	Purchase Agreement No. PA-03776, dated as of July 12, 2012, between The Boeing Company and United Continental Holdings, Inc. (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.34	UAL United	Supplemental Agreement No. 1 to Purchase Agreement No. 03776, dated as of June 17, 2013 , between The Boeing Company and United Continental Ho ldings, Inc. (filed as Exhibit 10.4 to UAL's Form 10-Q for the quarter ended September 30, 2023and incorporated herein by reference)

^10.35	UAL United	Purchase Agreement Assignment to Purchase Agreement No. 03776, dated as of October 23, 2013, between United Continental Holdings, Inc. and United Airlines, Inc. (filed as Exhibit 10.5 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.36	UAL United	Supplemental Agreement No. 2 to Purchase Agreement No. 03776, dated as of January 14, 2015 , between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.6 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.37	UAL United	Supplemental Agreement No. 3 to Purchase Agreement No. 03776, dated as of May 26, 2015 , between The Boeing Company and United Air lines, Inc. (filed as Exhibit 10.7 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.38	UAL United	Supplemental Agreement No. 4 to Purchase Agreement No. 03776, dated as of June 12, 2015 , between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.8 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.39	UAL United	Supplemental Agreement No. 5 to Purchase Agreement No. 03776, dated as of January 20, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.9 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.40	UAL United	Supplemental Agreement No. 6 to Purchase Agreement No. 03776, dated as of February 8, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.10 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.41	UAL United	Supplemental Agreement No. 7 to Purchase Agreement No. 03776, dated as of December 27, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.11 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.42	UAL United	Supplemental Agreement No. 8 to Purchase Agreement No. 03776, dated as of June 7, 2017, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.12 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)


^10.43	UAL United	Supplemental Agreement No. 9 to Purchase Agreement No. 03776, dated as of June 15, 2017, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.13 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.44	UAL United	Supplemental Agreement No. 10 to Purchase Agreement No. 03776, dated as of May 15, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.14 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.45	UAL United	Supplemental Agreement No. 11 to Purchase Agreement No. 03776, dated as of September 25, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.15 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.46	UAL United	Supplemental Agreement No. 1 2 to Purchase Agreement No. 03776, dated as of December 12, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.16 to UAL's Form 10-Q for the year ended September 30, 2023 and incorporated herein by reference)

^10.47	UAL United	Supplemental Agreement No. 13 to Purchase Agreement No. 03776, dated as of March 20, 2020, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.7 to UAL's Form 10-Q for the quarter ended March 31, 2020 and incorporated herein by reference)

^10.48	UAL United	Supplemental Agreement No. 14 to Purchase Agreement No. 03776, dated as of June 30, 2020, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.5 to UAL's Form 10-Q for the quarter ended June 30, 2020 and incorporated herein by reference)

^10.49	UAL United	Supplemental Agreement No. 15 to Purchase Agreement No. 03776, dated as of February 26, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.17 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.50	UAL United	Supplemental Agreement No. 16 to Purchase Agreement No. 03776, dated as of June 27, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

^10.51	UAL United	Supplemental Agreement No. 17 to Purchase Agreement No. 03776, dated as of August 12, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended September 30, 2021 and incorporated herein by reference)

^10.52	UAL United	Supplemental Agreement No. 18 to Purchase Agreement No. 03776, dated as of September 8, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.2 to UAL's Form 10-Q for the quarter ended September 30, 2021 and incorporated herein by reference)

^10.53	UAL United	Supplemental Agreement No. 19 to Purchase Agreement No. 03776, dated as of November 30, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.53 to UAL's Form 10-K for the year ended December 31, 2021 and incorporated herein by reference)

^10.54	UAL United	Supplemental Agreement No. 20 to Purchase Agreement No. 03776, dated as of June 30, 2022, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended June 30, 2022 and incorporated herein by reference)

^10.55	UAL United	Supplemental Agreement No. 21 to Purchase Agreement No. 03776, dated as of December 15, 2023, between The Boeing Company and United Airlines, Inc.

^10.56	UAL United	Letter Agreement No. 6-1162-KKT-080R2, dated as of December 12, 2022, among The Boeing Company, United Airlines Holdings, Inc. and United Airlines, Inc. (filed as Exhibit 10.59 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)


^10.57	UAL United	Purchase Agreement No. 3860, dated as of September 27, 2012, between The Boeing Company and United Air Lines, Inc. (filed as Exhibit 10.18 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.58	UAL United	Supplemental Agreement No. 1 to Purchase Agreement No. 3860, dated June 17, 2013 , between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.19 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.59	UAL United	Supplemental Agreement No. 2 to Purchase Agreement No. 3860, dated December 16, 2013 , between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.20 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.60	UAL United	Supplemental Agreement No. 3 to Purchase Agreement No. 3860, dated as of July 22, 2014 , between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.21 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.61	UAL United	Supplemental Agreement No. 4 to Purchase Agreement No. 3860, dated as of January 14, 2015 , between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.22 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.62	UAL United	Supplemental Agreement No. 5 to Purchase Agreement No. 3860, dated as of April 30, 2015 , between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.23 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.63	UAL United	Supplemental Agreement No. 6 to Purchase Agreement No. 3860, dated as of December 31, 2015 , between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.24 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.64	UAL United	Supplemental Agreement No. 7 to Purchase Agreement No. 3860, dated as of March 7, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.25 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.65	UAL United	Letter Agreement to Purchase Agreement No. 3860, dated as of May 5, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.26 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.66	UAL United	Supplemental Agreement No. 8, including exhibits and side letters, to Purchase Agreement No. 3860, d ated as of June 15, 2017, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.27 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.67	UAL United	Letter Agreement No. UAL-LA-1604287 to Purchase Agreement Nos. 3776, 3784 and 3860, dated December 27, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.28 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference )

^10.68	UAL United	Supplemental Agreement No. 9 to Purchase Agreement No. 3860, dated as of May 31, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.29 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.69	UAL United	Supplemental Agreement No. 10 to Purchase Agreement No. 3860, dated as of November 1, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.30 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.70	UAL United	Supplemental Agreement No. 11 to Purchase Agreement No. 3860, dated as of December 12, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.31 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)


^10.71	UAL United	Supplemental Agreement No. 12 to Purchase Agreement No. 3860, dated as of February 26, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.3 2 to UAL's Form 10-Q for the quarter ended September 30 , 202 3 and incorporated herein by reference)

^10.72	UAL United	A320 Family Purchase Agreement, dated as of December 3, 2019, between Airbus S.A.S. and United Airlines, Inc. including letter agreements related thereto, and subsequent letter agreements related thereto dated February 20, 2020 (filed as Exhibit 10.2 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

^10.73	UAL United	Amendment No. 1 to the A320 Family Purchase Agreement, dated as of December 3, 2020, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

^10.74	UAL United	Amendment No. 2 to the A320 Family Purchase Agreement, dated as of June 27, 2021, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.4 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

^10.75	UAL United	Amendment No. 3 to the A320 Family Purchase Agreement, dated as of October 29, 2021, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.73 to UAL's Form 10-K for the year ended December 31, 2021 and incorporated herein by reference)

^10.76	UAL United	Amendment No. 4 to the A320 Family Purchase Agreement, dated as of July 1, 2022, between Airbus S.A.S. and United Airlines, Inc.

^10.77	UAL United	Amendment No. 5 to the A320 Family Purchase Agreement, effective as of September 30 , 2023, between Airbus S.A.S. and United Airlines, Inc. (filed as Exhibit 10.37 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.78	UAL United	Amended and Restated Letter Agreement No. 2, dated as of July 1, 2022, between Airbus S.A.S. and United Airlines, Inc.

^10.79	UAL United	Purchase Agreement No. 04761, dated as of May 15, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.5 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

^10.80	UAL United	Supplemental Agreement No. 1 to Purchase Agreement No. 04761, dated as of September 25, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.6 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

^10.81	UAL United	Supplemental Agreement No. 2 to Purchase Agreement No. 04761, dated as of December 12, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.7 to UAL 's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

^10.82	UAL United	Supplemental Agreement No. 3 to Purchase Agreement No. 04761, dated as of March 20, 2020, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.8 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

^10.83	UAL United	Supplemental Agreement No. 4 to Purchase Agreement No. 04761, dated as of June 30, 2020, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.9 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)

^10.84	UAL United	Supplemental Agreement No. 5 to Purchase Agreement No. 04761, dated as of February 26, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.33 to UAL's Form 10-Q for the quarter ended September 30, 202 3 and incorporated herein by reference)

^10.85	UAL United	Supplemental Agreement No. 6 to Purchase Agreement No. 04761, dated as of June 27, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.11 to UAL's Form 10-Q for the quarter ended June 30, 2021 and incorporated herein by reference)



^10.86	UAL United	Supplemental Agreement No. 7 to Purchase Agreement No. 04761, dated as of August 12, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended September 30, 2021 and incorporated herein by reference)

^10.87	UAL United	Supplemental Agreement No. 8 to Purchase Agreement No. 04761, dated as of September 8, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.4 to UAL's Form 10-Q for the quarter ended September 30, 2021 and incorporated herein by reference)

^10.88	UAL United	Supplemental Agreement No. 9 to Purchase Agreement No. 04761, dated as of November 30, 2021, between The Boeing Company and United Airlines (filed as Exhibit 10.83 to UAL's Form 10-K for the year ended December 31, 2021 and incorporated herein by reference)

^10.89	UAL United	Supplemental Agreement No. 10 to Purchase Agreement No. 04761, dated as of June 30, 2022, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.2 to UAL's Form 10-Q for the quarter ended June 30, 2022 and incorporated herein by reference)

^10.90	UAL United	Supplemental Agreement No. 11 to Purchase Agreement Number 04761, dated as of November 29, 2022, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.90 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.91	UAL United	Supplemental Agreement No. 12 to Purchase Agreement No. 04761, dated as of December 12, 2022, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.91 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.92	UAL United	Supplemental Agreement No. 13 to Purchase Agreement No. 04761, dated as of December 15, 2023, between The Boeing Company and United Airlines, Inc.

^10.93	UAL United	Purchase Agreement No. 04815, dated as of May 31, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.92 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.94	UAL United	Supplemental Agreement No. 1 to Purchase Agreement Number 04815, dated as of September 25, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.93 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.95	UAL United	Supplemental Agreement No. 2 to Purchase Agreement Number 04815, dated as of November 1, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.94 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.96	UAL United	Supplemental Agreement No. 3 to Purchase Agreement Number 04815, dated as of December 12, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.95 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.97	UAL United	Supplemental Agreement No. 4 to Purchase Agreement Number 04815, dated as of April 26, 2019, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.96 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.98	UAL United	Supplemental Agreement No. 5 to Purchase Agreement Number 04815, dated as of October 31, 2019, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.97 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.99	UAL United	Supplemental Agreement No. 6 to Purchase Agreement Number 04815, dated as of February 7, 2020, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.98 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)


^10.100	UAL United	Supplemental Agreement No. 7 to Purchase Agreement Number 04815, dated as of March 20, 2020, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.99 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.101	UAL United	Supplemental Agreement No. 8 to Purchase Agreement Number 04815, dated as of June 30, 2020, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.100 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.102	UAL United	Supplemental Agreement No. 9 to Purchase Agreement Number 04815, dated as of February 26, 2021, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.101 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.103	UAL United	Supplemental Agreement No. 10 to Purchase Agreement Number 04815, dated as of August 25, 2022, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.102 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.104	UAL United	Supplemental Agreement No. 11 to Purchase Agreement Number 04815, dated as of September 27, 2022, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.103 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.105	UAL United	Supplemental Agreement No. 12 to Purchase Agreement Number 04815, dated as of December 12, 2022, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.104 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.106	UAL United	Supplemental Agreement No. 13 to Purchase Agreement No. 04815, dated as of September 28, 2023, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.34 to UAL's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

^10.107	UAL United	United Letter Agreement No. 22004762, dated as of December 12, 2022, to Purchase Agreement No. 03860, dated as of June 15, 2017, and Purchase Agreement No. 04815, dated as of May 31, 2018, between the Boeing Company and United Airlines, Inc. (filed as Exhibit 10.105 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.108	UAL United	United Letter Agreement No. 22004729, dated as of December 12, 2022, to Purchase Agreement No. 03860, dated as of June 15, 2017, Purchase Agreement No. 04815, dated as of May 31, 2018, and Purchase Agreement No. 02484, dated as of December 29, 2004, among The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.106 to UAL 's Form 10-K for the year ended December 31, 2022 and incorporated herein by reference)

^10.109	UAL United	Letter Agreement No. 22004729R1, dated as of September 28, 2023, between The Boeing Company and United Airlines, Inc. (related to Purchase Agreement Nos. 03860, 04815 and 02484) (filed as Exhibit 10.35 to UAL 's Form 10-Q for the quarter ended September 30, 2023 and incorporated herein by reference)

10.110	UAL United	Amended and Restated Credit and Guaranty Agreement, dated as of March 29, 2017, among United Airlines, Inc., as borrower, United Continental Holdings, Inc., as parent and a guarantor, the subsidiaries of United Continental Holdings, Inc. from time to time party thereto other than the borrower party thereto from time to time, as guarantors, the lenders from time to time party thereto and JPMorgan Chase Bank, N.A., as administrative agent (filed as Exhibit 10.1 to UAL's Form 8-K filed April 3, 2017 and incorporated herein by reference)

10.111	UAL United	First Amendment, dated as of November 15, 2017, to Amended and Restated Credit Guaranty Agreement (filed as Exhibit 10.219 to UAL's Form 10-K for the year ended December 31, 2017 and incorporated herein by reference)

10.112	UAL United	Second Amendment, dated as of May 16, 2018, to Amended and Restated Credit Guaranty Agreement (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended June 30, 2018 and incorporated herein by reference)



10.113	UAL United	Payroll Support Program Agreement, dated as of April 20, 2020, between United Airlines, Inc. and the United States Department of the Treasury (filed as Exhibit 10.1 to UAL's Form 8-K filed April 23, 2020 and incorporated herein by reference)

*10.114	UAL United	Credit Agreement, dated as of July 2, 2020, by and among Mileage Plus Holdings, LLC, Mileage Plus Intellectual Property Assets, Ltd., the guarantors named therein, the lenders named therein, the lead arrangers named therein, Goldman Sachs Bank USA, as administrative agent, and Wilmington Trust, National Association, as master collateral agent and collateral administrator (filed as Exhibit 10.1 to UAL's Form 8-K filed July 2, 2020 and incorporated herein by reference)

10.115	UAL United	Loan and Guarantee Agreement, dated as of September 28, 2020, among United, as borrower, United Airlines Holdings, Inc., as parent and guarantor, the subsidiaries of United Airlines Holdings, Inc. other than United Airlines, Inc. party thereto from time to time, as guarantors, The United States Department of the Treasury, as lender, and The Bank of New York Mellon, as administrative agent and collateral agent (filed as Exhibit 10.1 to UAL's Form 8-K filed September 30, 2020 and incorporated herein by reference)

*10.116	UAL United	Restatement Agreement, dated as of November 6, 2020, to that certain Loan and Guarantee Agreement, dated as of September 28, 2020, among United Airlines, Inc., United Airlines Holdings, Inc., the guarantors party thereto from time to time, The United States Department of the Treasury, as initial lender, and the Bank of New York Mellon, as administrative agent and collateral agent (and including the Loan and Guarantee Agreement dated as of September 28, 2020, and as amended and restated as of November 6, 2020, among United Airlines, Inc., as Borrower, the guarantors party thereto from time to time, The United States Department of the Treasury and The Bank of New York Mellon, as administrative agent) (filed as Exhibit 10.73 to UAL's Form 10-K for the year ended December 31, 2020 and incorporated herein by reference)

10.117	UAL United	Second Amendment to Loan and Guarantee Agreement, dated as of December 8, 2020, to the Loan and Guarantee Agreement, among United Airlines, Inc., United Airlines Holdings, Inc., the guarantors party thereto, the United State Department of the Treasury, as initial lender and a lender, and The Bank of New York Treasury, as administrative agent (filed as Exhibit 10.74 to UAL's Form 10-K for the year ended December 31, 2020 and incorporated herein by reference)

10.118	UAL United	Payroll Support Program Agreement, dated as of January 15, 2021, between United Airlines, Inc. and the United States Department of the Treasury (filed as Exhibit 10.1 to UAL's Form 8-K filed January 20, 2021 and incorporated herein by reference)

10.119	UAL United	Equity Distribution Agreement, dated as of March 3, 2021, by and among United Airlines Holdings, Inc., Morgan Stanley & Co. LLC, AmeriVet Securities, Inc., Barclays Capital Inc., BofA Securities, Inc., BBVA Securities Inc., BNP Paribas Securities Corp., Citigroup Global Markets Inc., Credit Agricole Securities (USA) Inc., Credit Suisse Securities (USA) LLC, Deutsche Bank Securities Inc., Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC, Loop Capital Markets LLC and Wells Fargo Securities, LLC (filed as Exhibit 1.1 to UAL's Form 8-K filed March 3, 2021 and incorporated herein by reference)

10.120	UAL United	Term Loan Credit and Guaranty Agreement, dated as of April 21, 2021, among United Airlines, Inc., United Airlines Holdings, Inc., each of the several banks and other financial institutions or entities from time to time party thereto, as lenders, JPMorgan Chase Bank, N.A., as administrative agent, and Wilmington Trust, National Association, as collateral trustee (filed as Exhibit 10.1 to UAL's Form 8-K filed April 22, 2021 and incorporated herein by reference)

10.121	UAL United	Amendment No. 2 to Term Loan Credit and Guaranty Agreement, dated as of February 22, 2024, among United Airlines, Inc., United Airlines Holdings, Inc., and JPMorgan Chase Bank, N.A., as fronting lender and replacement lender and as administrative agent (filed as Exhibit 10.2 to UAL's Form 8-K filed February 22, 2024 and incorporated herein by reference)

10.122	UAL United	Payroll Support Program 3 Agreement, dated as of April 29, 2021, between United Airlines, Inc. and the United States Department of the Treasury (filed as Exhibit 10.1 to UAL's Form 8-K filed April 30, 2021 and incorporated herein by reference)


10.123	UAL United	Amended and Restated Revolving Credit and Guaranty Agreement, dated as of February 15, 2024, among United Airlines, Inc., United Airlines Holdings, Inc., each of the several banks and other financial institutions or entities from time to time party thereto, as lenders, JPMorgan Chase Bank, N.A., as administrative agent, and Wilmington Trust, National Association, as collateral trustee (filed as Exhibit 10.1 to UAL's Form 8-K filed February 22, 2024 and incorporated herein by reference)

		List of Subsidiaries

21	UAL United	List of United Airlines Holdings, Inc. and United Airlines, Inc. Subsidiaries

		Consents of Experts and Counsel

23.1	UAL	Consent of Independent Registered Public Accounting Firm (Ernst & Young LLP) for United Airlines Holdings, Inc.

23.2	United	Consent of Independent Registered Public Accounting Firm (Ernst & Young LLP) for United Airlines, Inc.

		Rule 13a-14(a)/15d-14(a) Certifications

31.1	UAL	Certification of the Principal Executive Officer of United Airlines Holdings, Inc. pursuant to 15 U.S.C. 78m(a) or 78o(d) (Section 302 of the Sarbanes-Oxley Act of 2002)

31.2	UAL	Certification of the Principal Financial Officer of United Airlines Holdings, Inc. pursuant to 15 U.S.C. 78m(a) or 78o(d) (Section 302 of the Sarbanes-Oxley Act of 2002)

31.3	United	Certification of the Principal Executive Officer of United Airlines, Inc. pursuant to 15 U.S.C. 78m(a) or 78o(d) (Section 302 of the Sarbanes-Oxley Act of 2002)

31.4	United	Certification of the Principal Financial Officer of United Airlines, Inc. pursuant to 15 U.S.C. 78m(a) or 78o(d) (Section 302 of the Sarbanes-Oxley Act of 2002)

		Section 1350 Certifications

32.1	UAL	Certification of the Chief Executive Officer and Chief Financial Officer of United Airlines Holdings, Inc. pursuant to 18 U.S.C. 1350 (Section 906 of the Sarbanes-Oxley Act of 2002)

32.2	United	Certification of the Chief Executive Officer and Chief Financial Officer of United Airlines, Inc. pursuant to 18 U.S.C. 1350 (Section 906 of the Sarbanes-Oxley Act of 2002)

		Policy Relating to Recovery of Erroneously Awarded Compensation

97.1	UAL	United Airlines Holdings, Inc. Compensation Clawback Policy

		Interactive Data File

101	UAL United	The following financial statements from the combined Annual Report of UAL and United on Form 10-K for the year ended December 31, 2023, formatted in Inline XBRL: (i) Statements of Consolidated Operations, (ii) Statements of Consolidated Comprehensive Income (Loss), (iii) Consolidated Balance Sheets, (iv) Statements of Consolidated Cash Flows, (v) Statements of Consolidated Stockholders' Equity (Deficit) and (vi) Combined Notes to Condensed Consolidated Financial Statements, tagged as blocks of text and including detailed tags.


104			UAL United			Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document

† Indicates management contract or compensatory plan or arrangement. Pursuant to Item 601(b)(10), United is permitted to omit certain compensation-related exhibits from this report and therefore only UAL is identified as the registrant for purposes of those items.

^ Portions of the referenced exhibit have been omitted pursuant to Item 601(b) of Regulation S-K.

Exhibits and schedules have been omitted pursuant to Item 601(a)(5) of Regulation S-K and will be furnished on a supplemental basis to the Securities and Exchange Commission upon request.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.



						UNITED AIRLINES HOLDINGS, INC. UNITED AIRLINES, INC. (Registrants)

By:						/s/ Michael Leskinen
						Michael Leskinen
						Executive Vice President and Chief Financial Officer


Date:						February 29, 2024

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of United Airlines Holdings, Inc. and in the capacities and on the date indicated.


Signature						Capacity

/s/ J. Scott Kirby						Chief Executive Officer, Director
J. Scott Kirby						(Principal Executive Officer)

/s/ Michael Leskinen						Executive Vice President and Chief Financial Officer
Michael Leskinen						(Principal Financial Officer)

/s/ Chris Kenny						Vice President and Controller
Chris Kenny						(Principal Accounting Officer)

/s/ Rosalind G. Brewer						Director
Rosalind G. Brewer

/s/ Carolyn Corvi						Director
Carolyn Corvi

/s/ Matthew Friend						Director
Matthew Friend

/s/ Barney Harford						Director
Barney Harford

/s/ Michele J. Hooper						Director
Michele J. Hooper

/s/ Walter Isaacson						Director
Walter Isaacson



/s/ Richard Johnsen						Director
Richard Johnsen

/s/ James A.C. Kennedy						Director
James A.C. Kennedy

/s/ Edward M. Philip						Director
Edward M. Philip

/s/ Edward L. Shapiro						Director
Edward L. Shapiro

/s/ Laysha Ward						Director
Laysha Ward

/s/ James M. Whitehurst						Director
James M. Whitehurst

/s/ Anne Worster						Director
Anne Worster


Date:			February 29, 2024

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of United Airlines, Inc. and in the capacities and on the date indicated.


Signature						Capacity

/s/ J. Scott Kirby						Chief Executive Officer, Director
J. Scott Kirby						(Principal Executive Officer)

/s/ Michael Leskinen						Executive Vice President and Chief Financial Officer, Director
Michael Leskinen						(Principal Financial Officer)

/s/ Chris Kenny						Vice President and Controller
Chris Kenny						(Principal Accounting Officer)

/s/ Brett J. Hart						Director
Brett J. Hart


Date:			February 29, 2024

Schedule II

Valuation and Qualifying Accounts

For the Years Ended December 31, 2023, 2022 and 2021


(In millions) Description	Balance at Beginning of Period		Additions Charged to Costs and Expenses		Deductions		Other		Balance at End of Period
Allowance for credit losses - receivables:
2023	$	11	$	27	$	23	$	3	$	18
2022	28		22		39		—		11
2021	78		3		53		—		28
Obsolescence allowance—spare parts:
2023	$	610	$	102	$	23	$	—	$	689
2022	546		73		9		—		610
2021	478		79		11		—		546
Allowance for credit losses - investments in affiliates and other:
2023	$	21	$	20	$	—	$	(3)	$	38
2022	622		20		539		(82)		21
2021	522		1		—		99		622
Valuation allowance for deferred tax assets:
2023	$	199	$	(21)	$	—	$	1	$	179
2022	210		(10)		—		(1)		199
2021	247		(38)		—		1		210

Previous: Item 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.