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, Commission file number 1-6033, and incorporated herein by reference)

3.2	UAL	Amended and Restated Bylaws of United Airlines Holdings, Inc. (filed as Exhibit 3.2 to UAL's Form 8-K filed June 27, 2019, Commission file number 1-6033, and incorporated herein by reference)

3.3	UAL	Certificate of Designation of the Series A Junior Participating Serial Preferred Stock of the Company, dated December 4, 2020 (incorporated by reference to Exhibit 3.1 to the Company’s Registration Statement on Form 8-A, filed with the Securities and Exchange Commission on December 7, 2020)

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, Commission file number 1-6033, 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, Commission file number 1-6033, 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, Commission file number 1-6033, 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, Commission file number 1-6033, 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, Commission file number 1-6033, 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, Commission file number 1-6033, 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, Commission file number 1-6033, 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, Commission file number 1-6033, and incorporated herein by reference)

4.70	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, Commission file number 1-6033, 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, Commission file number 1-6033, 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, Commission file number 1-6033, 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, Commission file number 1-6033, and incorporated herein by reference)

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

4.12	UAL United	Promissory Note, dated as of April 20, 2020, among UAL, United, 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)

4.13	UAL	Warrant Agreement (including Form of Warrant), dated as of April 20, 2020, between UAL 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)

4.14	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)

4.15	UAL United	Warrant Agreement, dated as of September 28, 2020, between UAL 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)

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

4.17	UAL	Tax Benefits Preservation Plan, dated as of December 4, 2020, by and between the Company and Computershare Trust Company, N.A., as rights agent (which includes the Form of Rights Certificate as Exhibit B thereto) (incorporated by reference to Exhibit 4.1 to the Company’s Registration Statement on Form 8-A, filed with the Securities and Exchange Commission on December 7, 2020)

4.18	UAL	Amendment No. 1 to Tax Benefits Preservation Plan

		Material Contracts

†10.1	UAL	Agreement, dated 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, Commission file number 1-6033, and incorporated herein by reference)

†10.2	UAL	United Airlines Holdings, Inc. Profit Sharing Plan (amended and restated effective January 1, 2019) (filed as Exhibit 10.2 to UAL's Form 10-K for the year ended December 31, 2019 Commission file number 1-6033, and incorporated herein by reference)


†10.3	UAL United	Employment Agreement, dated December 31, 2015, among United Continental Holdings, Inc., United Airlines, Inc. and Oscar Munoz (filed as Exhibit 10.1 to UAL's Form 8-K/A filed January 7, 2016, Commission file number 1-6033, and incorporated herein by reference)

†10.4	UAL United	Amendment to Employment Agreement, dated April 19, 2016, by and among United Continental Holdings, Inc., United Airlines, Inc. and Oscar Munoz (filed as Exhibit 10.1 to UAL's Form 8-K filed April 20, 2016, Commission file number 1-6033, and incorporated herein by reference)

†10.5	UAL United	Second Amendment to Employment Agreement, dated April 21, 2017, by and among United Continental Holdings, Inc., United Airlines, Inc. and Oscar Munoz (filed as Exhibit 10.1 to UAL's Current Report on Form 8-K filed on April 21, 2017, Commission file number 1-6033, and incorporated herein by reference)

†10.6	UAL United	Transition Agreement, dated as of December 4, 2019, by and among United Airlines Holdings, Inc., United Airlines, Inc. and Oscar Munoz (filed as Exhibit 10.1 to UAL's Current Report on Form 8-K filed on December 6, 2019, Commission file number 1-6033, and incorporated herein by reference)

†10.7	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, Commission file number 1-6033, and incorporated herein by reference)

†10.8	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 Current Report on Form 8-K filed on December 6, 2019, Commission file number 1-6033, and incorporated herein by reference)

†10.9	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, Commission file number 1-6033, and incorporated herein by reference)

†10.10	UAL	Description of Benefits for Officers of United Airlines Holdings, Inc. and United Airlines, Inc. (filed as Exhibit 10.11 to UAL's Form 10-K for the year ended December 31, 2019 Commission file number 1-6033, and incorporated herein by reference)

†10.11	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, Commission file number 1-6033, and incorporated herein by reference)

†10.12	UAL	United Continental Holdings, Inc. 2008 Incentive Compensation Plan (filed as Annex A to UAL Corporation's 2013 Definitive Proxy Statement filed on April 26, 2013, Commission file number 1-6033, and incorporated herein by reference) (now named the United Continental Holdings, Inc. 2008 Incentive Compensation Plan)

†10.13	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 on April 26, 2013, Commission file number 1-6033, and incorporated herein by reference)

†10.14	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, Commission file number 1-6033, and incorporated herein by reference)

†10.15	UAL	Form of Stock Option Award Notice pursuant to the United Continental Holdings, Inc. 2008 Incentive Compensation Plan (filed as Exhibit 10.5 to UAL's Form 10-Q for the quarter ended June 30, 2008, Commission file number 1-6033, and incorporated herein by reference)

†10.16	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 Commission file number 1-6033, and incorporated herein by reference)

†10.17	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, Commission file number 1-6033, and incorporated herein by reference)

†10.18	UAL	United Continental Holdings, Inc. 2017 Incentive Compensation Plan (filed as Exhibit 10.1 to UAL's Form 8-K filed on May 30, 2017, Commission file number 1-6033, and incorporated herein by reference)


†10.19	UAL	United Continental Holdings, Inc. Annual Incentive Program (cash settled form of award) (adopted pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan) (filed as Exhibit 10.63 to UAL's Form 10-K for the year ended December 31, 2017, Commission file number 1-6033, and incorporated herein by reference)

†10.20	UAL	Form of Annual Incentive Program Award Notice pursuant to the United Continental Holdings, Inc. Annual Incentive Program (adopted pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan) (filed as Exhibit 10.64 to UAL's Form 10-K for the year ended December 31, 2017, Commission file number 1-6033, and incorporated herein by reference)

†10.21	UAL	Form of Performance-Based RSU Award Notice pursuant to the United Continental Holdings, Inc. Performance-Based RSU Program (for performance periods beginning on or after January 1, 2020) (filed as Exhibit 10.35 to UAL's Form 10-K for the year ended December 31, 2019 Commission file number 1-6033, and incorporated herein by reference)

†10.22	UAL	Form of Performance-Based RSU Award Notice (adopted pursuant to the United Continental Holdings, Inc. 2017 Incentive Compensation Plan)

†10.23	UAL	Form of Long-term Contingent Cash Award Notice

†10.24	UAL	Description of Compensation and Benefits for United Airlines Holdings, Inc. Non-Employee Directors (filed as Exhibit 10.36 to UAL's Form 10-K for the year ended December 31, 2019 Commission file number 1-6033, and incorporated herein by reference)

†10.25	UAL	United Continental Holdings, Inc. 2006 Director Equity Incentive Plan (as amended and restated, effective February 20, 2014, filed as Annex A to UAL's Definitive Proxy Statement filed April 25, 2014, Commission file number 1-6033, and incorporated herein by reference)

†10.26	UAL	First Amendment to the United Continental Holdings, Inc. 2006 Director Equity Incentive Plan (as amended and restated on February 20, 2014) (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended March 31, 2017, Commission file number 1-6033, and incorporated herein by reference)

†10.27	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, Commission file number 1-6033, and incorporated herein by reference)

†10.28	UAL	Letter Agreement dated March 10, 2020 among Oscar Munoz, UAL and United related to salary waiver (filed as Exhibit 10.2 to UAL's Form 10-Q for the quarter ended March 31, 2020, Commission file number 1-6033, and incorporated herein by reference)

†10.29	UAL	Letter Agreement dated March 10, 2020 among J. Scott Kirby, UAL and United related to salary waiver (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended March 31, 2020, Commission file number 1-6033, and incorporated herein by reference)

†10.30	UAL	Letter Agreement dated April 29, 2020 among J. Scott Kirby, UAL and United related to salary waiver (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended June 30, 2020, Commission file number 1-6033, and incorporated herein by reference)

†10.31	UAL	Letter Agreement dated May 21, 2020 among Brett J. Hart, UAL and United related to salary waiver (filed as Exhibit 10.2 to UAL's Form 10-Q for the quarter ended June 30, 2020, Commission file number 1-6033, and incorporated herein by reference)

^10.32	UAL United	Amended and Restated A350-900 Purchase Agreement, dated 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, 2017, Commission file number 1-6033, and incorporated herein by reference)

^10.33	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, Commission file number 1-6033, and incorporated herein by reference)

^10.34	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 Commission file number 1-6033, and incorporated herein by reference)


^10.35	UAL United	Aircraft General Terms Agreement, dated October 10, 1997, by and among Continental and Boeing (filed as Exhibit 10.15 to Continental's Form 10-K for the year ended December 31, 1997, Commission File Number 1-10323, and incorporated herein by reference)

^10.36	UAL United	Purchase Agreement No. PA-03776, dated 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, 2012, Commission file number 1-6033, and incorporated herein by reference)

^10.37	UAL United	Supplemental Agreement No. 1 to Purchase Agreement No. 03776, dated June 17, 2013 (filed as Exhibit 10.5 to UAL's Form 10-Q for the quarter ended June 30, 2013, Commission file number 1-6033, and incorporated herein by reference)

^10.38	UAL United	Purchase Agreement Assignment to Purchase Agreement No. 03776, dated October 23, 2013, between United Continental Holdings, Inc. and United Airlines, Inc. (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended September 30, 2013, Commission file number 1-6033, and incorporated herein by reference)

^10.39	UAL United	Supplemental Agreement No. 2 to Purchase Agreement No. 03776, dated January 14, 2015 (filed as Exhibit 10.5 to UAL's Form 10-Q for the quarter ended March 31, 2015, Commission file number 1-6033, and incorporated herein by reference)

^10.40	UAL United	Supplemental Agreement No. 3 to Purchase Agreement No. 03776, dated May 26, 2015 (filed as Exhibit 10.4 to UAL's Form 10-Q for the quarter ended June 30, 2015, Commission file number 1-6033, and incorporated herein by reference)

^10.41	UAL United	Supplemental Agreement No. 4 to Purchase Agreement No. 03776, dated June 12, 2015 (filed as Exhibit 10.5 to UAL's Form 10-Q for the quarter ended June 30, 2015, Commission file number 1-6033, and incorporated herein by reference)

^10.42	UAL United	Supplemental Agreement No. 5 to Purchase Agreement No. 03776, dated January 20, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended March 31, 2016, Commission file number 1-6033, and incorporated herein by reference)

^10.43	UAL United	Supplemental Agreement No. 6 to Purchase Agreement No. 03776, dated February 8, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended March 31, 2016, Commission file number 1-6033, and incorporated herein by reference)

^10.44	UAL United	Supplemental Agreement No. 7 to Purchase Agreement No. 03776, dated December 27, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.183 to UAL's Form 10-K for the year ended December 31, 2016, Commission file number 1-6033, and incorporated herein by reference)

^10.45	UAL United	Supplemental Agreement No. 8, including exhibits and side letters, to Purchase Agreement No. 03776, dated June 7, 2017, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended June 30, 2017, Commission file number 1-6033, and incorporated herein by reference)

^10.46	UAL United	Supplemental Agreement No. 9, including exhibits and side letters, to Purchase Agreement No. 03776, dated June 15, 2017, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.4 to UAL's Form 10-Q for the quarter ended June 30, 2017, Commission file number 1-6033, and incorporated herein by reference)

^10.47	UAL United	Supplemental Agreement No. 10, including exhibits and side letters, to Purchase Agreement No. 03776, dated as of May 15, 2018, 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, 2018, Commission file number 1-6033, and incorporated herein by reference)

^10.48	UAL United	Supplemental Agreement No. 11, including exhibits and side letters, to Purchase Agreement No. 03776, dated as of September 25, 2018, 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, 2018, Commission file number 1-6033, and incorporated herein by reference)

^10.49	UAL United	Supplemental Agreement No. 12, including exhibits and side letters, to Purchase Agreement No. 03776, dated as of December 12, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.152 to UAL's Form 10-K for the year ended December 31, 2018, Commission file number 1-6033, and incorporated herein by reference)


^10.50	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, Commission file number 1-6033, and incorporated herein by reference)

^10.51	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, Commission file number 1-6033, and incorporated herein by reference)

^10.52	UAL United	Letter Agreement No. 6-1162-KKT-080, dated July 12, 2012, among Boeing, United Continental Holdings, Inc., United Air Lines, Inc., and Continental Airlines, Inc. (filed as Exhibit 10.4 to UAL's Form 10-Q for the quarter ended September 30, 2012, Commission file number 1-6033, and incorporated herein by reference)

^10.53	UAL United	Purchase Agreement No. 3860, dated September 27, 2012, between Boeing and United Air Lines, Inc. (filed as Exhibit 10.6 to UAL's Form 10-Q for the quarter ended September 30, 2012, Commission file number 1-6033, and incorporated herein by reference)

^10.54	UAL United	Supplemental Agreement No. 1 to Purchase Agreement No. 3860, dated June 17, 2013 (filed as Exhibit 10.6 to UAL's Form 10-Q for the quarter ended June 30, 2013, Commission file number 1-6033, and incorporated herein by reference)

^10.55	UAL United	Supplemental Agreement No. 2 to Purchase Agreement No. 3860, dated December 16, 2013 (filed as Exhibit 10.1 to UAL's Form 10-Q for the quarter ended June 30, 2014, Commission file number 1-6033, and incorporated herein by reference)

^10.56	UAL United	Supplemental Agreement No. 3 to Purchase Agreement No. 3860, dated as of July 22, 2014 (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended September 30, 2014, Commission file number 1-6033, and incorporated herein by reference)

^10.57	UAL United	Supplemental Agreement No. 4 to Purchase Agreement No. 3860, dated as of January 14, 2015 (filed as Exhibit 10.6 to UAL's Form 10-Q for the quarter ended March 31, 2015, Commission file number 1-6033, and incorporated herein by reference)

^10.58	UAL United	Supplemental Agreement No. 5 to Purchase Agreement No. 3860, dated as of April 30, 2015 (filed as Exhibit 10.8 to UAL's Form 10-Q for the quarter ended June 30, 2015, Commission file number 1-6033, and incorporated herein by reference)

^10.59	UAL United	Supplemental Agreement No. 6 to Purchase Agreement No. 3860, dated as of December 31, 2015 (filed as Exhibit 10.178 to UAL's Form 10-K for the year ended December 31, 2015, Commission file number 1-6033, and incorporated herein by reference)

^10.60	UAL United	Supplemental Agreement No. 7 to Purchase Agreement No. 3860, dated March 7, 2016, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.5 to UAL's Form 10-Q for the quarter ended March 31, 2016, Commission file number 1-6033, and incorporated herein by reference)

^10.61	UAL United	Letter Agreement to Purchase Agreement No. 3860, dated May 5, 2016, 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, 2016, Commission file number 1-6033, and incorporated herein by reference)

^10.62	UAL United	Supplemental Agreement No. 8, including exhibits and side letters, to Purchase Agreement No. 3860, Dated June 15, 2017, 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, 2017, Commission file number 1-6033, and incorporated herein by reference)

^10.63	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 10.194 to UAL's Form 10-K for the year ended December 31, 2016, Commission file number 1-6033, and incorporated herein by reference)

^10.64	UAL United	Supplemental Agreement No. 9, including exhibits and side letters, to Purchase Agreement No. 3860, dated as of May 31, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.3 to UAL's Form 10-Q for the quarter ended June 30, 2018, Commission file number 1-6033, and incorporated herein by reference)

^10.65	UAL United	Supplemental Agreement No. 10, including exhibits and side letters, to Purchase Agreement No. 3860, dated as of November 1, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.166 to UAL's Form 10-K for the year ended December 31, 2018, Commission file number 1-6033, and incorporated herein by reference)


^10.66	UAL United	Supplemental Agreement No. 11, including exhibits and side letters, to Purchase Agreement No. 3860, dated as of December 12, 2018, between The Boeing Company and United Airlines, Inc. (filed as Exhibit 10.167 to UAL's Form 10-K for the year ended December 31, 2018, Commission file number 1-6033, and incorporated herein by reference)

10.67	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, Commission file number 1-6033, and incorporated herein by reference)

10.68	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, Commission file number 1-6033, and incorporated herein by reference)

10.69	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, Commission file number 1-6033, and incorporated herein by reference)

10.70	UAL United	Payroll Support Program Agreement, dated as of April 20, 2020, between United 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)

*10.71	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)

10.72	UAL United	Loan and Guarantee Agreement, among United, as borrower, UAL, as parent and guarantor, the subsidiaries of UAL other than United 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)

*10.73	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)

10.74	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

		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)


		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, 2020, 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/ Gerald Laderman
						Gerald Laderman
						Executive Vice President and Chief Financial Officer


Date:						March 1, 2021

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/ Gerald Laderman						Executive Vice President and Chief Financial Officer
Gerald Laderman						(Principal Financial Officer)

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

/s/ Carolyn Corvi						Director
Carolyn Corvi

/s/ Barney Harford						Director
Barney Harford

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

/s/ Todd M. Insler						Director
Todd M. Insler

/s/ Walter Isaacson						Director
Walter Isaacson


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

/s/ Oscar Munoz						Director
Oscar Munoz

/s/ Sito Pantoja						Director
Sito Pantoja

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

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

/s/ David J. Vitale						Director
David J. Vitale

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


Date:			March 1, 2021

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/ Gerald Laderman						Executive Vice President and Chief Financial Officer, Director
Gerald Laderman						(Principal Financial Officer)

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

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


Date:			March 1, 2021

Schedule II

Valuation and Qualifying Accounts

For the Years Ended December 31, 2020, 2019 and 2018


(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:
2020	$	9	$	70	$	16	$	15	$	78
2019	8		17		16		—		9
2018	7		17		16		—		8
Obsolescence allowance—spare parts:
2020	$	425	$	88	$	35	$	—	$	478
2019	412		76		63		—		425
2018	354		73		15		—		412
Allowance for credit losses - notes receivable:
2020	$	—	$	518	$	—	$	4	$	522
Valuation allowance for deferred tax assets:
2020	$	58	$	197	$	8	$	—	$	247
2019	59		—		1		—		58
2018	63		2		6		—		59

Previous: Item 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.