EX-23.1 4 g93459exv23w1.txt EX-23.1 CONSENT OF DELOITTE & TOUCHE LLP EXHIBIT 23.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in Registration Statements No. 333-65218 and 333-115206 on Form S-3, in Post-Effective Amendment No. 11 to Registration Statement No. 333-108176 on Form S-3, and in Registration Statements No. 2-94541, 33-65391, 333-16471, 333-92291, 333-46904, 333-48718, 333-49553, 333-73856, 333-121482, and 333-122714 on Form S-8 of (1) our report dated March 9, 2005 relating to the consolidated financial statements of Delta Air Lines, Inc. (which report expresses an unqualified opinion on the Company's consolidated financial statements and includes explanatory paragraphs relating to the Company's ability to continue as a going concern and the Company's change in its method of accounting for goodwill and other intangible assets, effective January 1, 2002, to conform with Statement of Financial Accounting Standards No. 142) and (2) our report dated March 9, 2005 relating to management's report on the effectiveness of internal control over financial reporting, appearing in this Annual Report on Form 10-K of Delta Air Lines, Inc. for the year ended December 31, 2004. Atlanta, Georgia March 9, 2005