| 3.1 (a) | | | | | | Delta's Amended and Restated Certificate of Incorporation (Filed as Exhibit 3.1 to Delta's Current Report on Form 8-K as filed on April 30, 2007).* | | |
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| 3.1 (b) | | | | | | Amendment to Amended and Restated Certificate of Incorporation (Filed as Exhibit 3.1 to Delta's Current Report on Form 8-K as filed on June 27, 2014).* | | |
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| 3.2 | | | | | | Delta's Bylaws (Filed as Exhibit 3.1 to Delta's Current Report on Form 8-K as filed on December 9, 2022).* | | |
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| 4.1 | | | | | | Description of Registrant's Securities (Filed as Exhibit 4.1 to Delta's Annual Report on Form 10-K for the year ended December 31, 2020).* | | |
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| 10.1 (a) | | | | | | Supplemental Agreement No. 5, dated September 29, 2026, to Purchase Agreement No. PA-04696, dated July 18, 2022, between The Boeing Company and Delta Air Lines, Inc. relating to Boeing Model 737-10 Aircraft ("Supplemental Agreement No. 5").** | | |
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| 10.1 (b) | | | | | | Letter Agreements, dated September 29, 2026, relating to Supplemental Agreement No. 5.** | | |
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| 15 | | | | | | Letter from Ernst & Young LLP regarding unaudited interim financial information. | | |
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| 31.1 | | | | | | Certification by Delta's Chief Executive Officer with respect to Delta's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2026. | | |
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| 31.2 | | | | | | Certification by Delta's Chief Financial Officer with respect to Delta's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2026. | | |
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| 32 | | | | | | Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code by Delta's Chief Executive Officer and Chief Financial Officer with respect to Delta's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2026. | | |
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| 101.INS | | | | | | Inline XBRL Instance Document - The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document. | | |
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| 101.SCH | | | | | | Inline XBRL Taxonomy Extension Schema Document | | |
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| 101.CAL | | | | | | Inline XBRL Taxonomy Extension Calculation Linkbase Document | | |
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| 101.DEF | | | | | | Inline XBRL Taxonomy Extension Definition Linkbase Document | | |
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| 101.LAB | | | | | | Inline XBRL Taxonomy Extension Labels Linkbase Document | | |
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| 101.PRE | | | | | | Inline XBRL Taxonomy Extension Presentation Linkbase Document | | |
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| 104 | | | | | | The cover page from this Quarterly Report on Form 10-Q for the quarter ended September 30, 2026, formatted in Inline XBRL (included in Exhibit 101) | | |
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| | | * | | | Incorporated by reference. | | |
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| | | ** | | | Portions of this exhibit have been omitted as confidential information. | | |