SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K [X] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For fiscal year ended December 31, 2003 [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period COMMISSION FILE NUMBER: 1-5424 A. Full title of the plan and address of the plan if different from that of the issuer named below: Atlantic Southeast Airlines, Inc. Investment Savings Plan ATLANTIC SOUTHEAST AIRLINES, INC. 100 Hartsfield Centre Parkway, Suite 800 Atlanta, Georgia 30320 B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office: Delta Air Lines, Inc. Hartsfield International Airport Atlanta, Georgia 30320 AUDITED FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULE Atlantic Southeast Airlines, Inc. Investment Savings Plan As of December 31, 2003 and 2002 and year ended December 31, 2003 with Report of Independent Registered Public Accounting Firm Atlantic Southeast Airlines, Inc. Investment Savings Plan Audited Financial Statements and Supplemental Schedule As of December 31, 2003 and 2002 and year ended December 31, 2003 CONTENTS Report of Independent Registered Public Accounting Firm Financial Statements Statements of Net Assets Available for Benefits Statement of Changes in Net Assets Available for Benefits Notes to Financial Statements Supplemental Schedule Schedule of Assets (Held at End of Year) Report of Independent Registered Public Accounting Firm Plan Administrator Atlantic Southeast Airlines, Inc. Investment Savings Plan We have audited the accompanying statements of net assets available for benefits of Atlantic Southeast Airlines, Inc. Investment Savings Plan as of December 31, 2003 and 2002, and the related statement of changes in net assets available for benefits for the year ended December 31, 2003. These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatements. An audit includes examining, on a test basis, evidence supporting amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements referred to above present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2003 and 2002, and the changes in its net assets available for benefits for the year ended December 31, 2003, in conformity with U.S. generally accepted accounting principles. Our audits were performed for the purpose of forming an opinion on the financial statements taken as a whole. The accompanying supplemental schedule of assets (held at end of year) as of December 31, 2003 is presented for the purposes of additional analysis and is not a required part of the financial statements, but is supplementary information required by the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. This supplemental schedule is the responsibility of the Plan's management. The supplemental schedule has been subjected to the auditing procedures applied in our audits of the financial statements and, in our opinion, is fairly stated in all material respects in relation to the financial statements taken as a whole. /s/ Ernst & Young LLP May 28, 2004 Atlantic Southeast Airlines, Inc. Investment Savings Plan Statements of Net Assets Available for Benefits DECEMBER 31 2003 2002 ------------------- ASSETS Investments, at fair value $72,644,087 $51,480,220 Contributions receivable: Employer 3,251,776 2,755,231 Participant 306,944 270,754 ---------------------------- 3,558,720 3,025,985 ---------------------------- Net assets available for benefits $76,202,807 $54,506,205 ============================ See accompanying notes. Atlantic Southeast Airlines, Inc. Investment Savings Plan Statement of Changes in Net Assets Available for Benefits Year ended December 31, 2003 Additions to net assets attributed to: Contributions: Employer $ 3,255,112 Participant 9,558,774 ----------- 12,813,886 Investment income: Interest and dividends 833,071 Net appreciation in fair value of investments 10,033,409 ----------- 10,866,480 ----------- Total 23,680,366 Deductions from net assets attributed to: Distributions to participants (1,920,497) Administrative expenses (63,267) ----------- Total (1,983,764) ----------- Net increase in net assets available for benefits 21,696,602 Net assets available for benefits: Beginning of year 54,506,205 ----------- End of year $76,202,807 =========== See accompanying notes. Atlantic Southeast Airlines, Inc. Investment Savings Plan Notes to Financial Statements December 31, 2003 1. DESCRIPTION OF PLAN The following description of the Atlantic Southeast Airlines, Inc. Investment Savings Plan (the "Plan") provides only general information. Participants should refer to the Summary Plan Description for a more complete description of the Plan's provisions. GENERAL The Plan is a defined contribution plan covering all employees of Atlantic Southeast Airlines, Inc. (the "Company"). Employees become eligible to enroll on the enrollment date following the date of completion of ninety days of continuous employment. The enrollment dates for the Plan are January 1, April 1, July 1, or October 1 of each year. Employer matching contributions are awarded to employees who work at least 1,000 hours each year and have at least one year of service. Once the length of service provision is met, the employee is eligible for matching contributions for the following Plan year, which begins on January 1. Eligible employees must be employed on December 31 to receive a matching contribution for the Plan year. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended ("ERISA"). The Company uses Delta Air Lines, Inc. ("Delta") common stock as an investment option in the Plan. Atlantic Southeast Airlines, Inc. is a wholly-owned subsidiary of Delta. CONTRIBUTIONS Participants are able to contribute up to 50% of pretax annual compensation, as defined by the Plan. Participants may also make rollover contributions from other qualified defined benefit or defined contribution plans. The Company may, in its sole discretion, make matching contributions up to 6% of a participant's eligible compensation, as defined by the Plan. Based on years of service for participants, matching contributions range from 20% to 75%, regardless of the date of participation. Atlantic Southeast Airlines, Inc. Investment Savings Plan Notes to Financial Statements (continued) 1. DESCRIPTION OF PLAN (CONTINUED) FORFEITURES Forfeitures of terminated participants' nonvested accounts are used to reduce future matching contributions of the Company. The Company used approximately $23,300 of forfeitures to reduce employer matching contributions during the year ended December 31, 2003. PARTICIPANT ACCOUNTS Each participant's account is credited with the participant's contributions and allocations of the Company's contributions and Plan investment results. The allocations are based on participant earnings or account balances, as defined. A quarterly recordkeeping fee is charged to each participant's account. VESTING All participant contributions and earnings thereon are 100% vested. Company contributions to participant accounts vest on a graded basis at 10% per year for two years of service, increasing to 20% per year thereafter until fully vesting after six years of service. PAYMENT OF BENEFITS Upon termination, participants may elect lump-sum distributions or periodic distributions over either a 5 or 10-year period. The full value of benefits are payable upon normal or postponed retirement, total or permanent disability or to beneficiaries upon death of the participant. PARTICIPANT LOANS Participants may borrow a minimum of $1,000 up to a maximum of the lesser of $25,000 or 50% of their vested account balances. Loan terms range from 1 - 5 years. Loans are secured by the balance in the participant's account and bear interest at a rate commensurate with local prevailing rates as determined at the time of the loan. Atlantic Southeast Airlines, Inc. Investment Savings Plan Notes to Financial Statements (continued) 1. DESCRIPTION OF PLAN (CONTINUED) PLAN TERMINATION Under the provisions of the Plan, the Company reserves the right to amend or terminate the Plan at any time provided that amendments will not divert a vested interest or permit any part of the fund to revert to the Company or to be used for any purpose other than for the exclusive benefit of participants or their beneficiaries. If the Plan is terminated, each participant's account will become fully vested. 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES BASIS OF PRESENTATION The Plan's financial statements have been prepared on the accrual basis of accounting. VALUATION OF INVESTMENTS Mutual funds and common stock are stated at fair value based on the quoted market prices. Participant loans are valued at their outstanding balance, which approximates fair value. The Plan utilizes various investment instruments, including mutual funds and investment contracts. Investment securities, in general, are exposed to various risks, such as interest rate, credit, and overall market volatility. Due to the level of risk associated with certain investment securities, including common stock of Delta Air Lines, Inc., it is reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect the amounts reported in the financial statements. Delta reported a net loss of $773 million for the year ended December 31, 2003, and an unaudited net loss of $383 million for the March 2004 quarter. In its Quarterly Report on Form 10-Q for the quarter ended March 31, 2004, Delta said that continued losses of the magnitude experienced in 2003 and the March 2004 quarter are unsustainable over the long term, and that Delta has significant obligations due in 2005 and thereafter. Delta further said that, if it cannot achieve a competitive cost structure, regain sustained profitability and access the capital markets on acceptable terms, it will need to pursue alternative courses of action intended to make it viable for the long-term, including the possibility of seeking to restructure its costs under Chapter 11 of the U.S. Bankruptcy Code. Atlantic Southeast Airlines, Inc. Investment Savings Plan Notes to Financial Statements (continued) ADMINISTRATIVE EXPENSES The Company paid certain administrative expenses of the Plan. USE OF ESTIMATES The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. 3. INVESTMENTS During the year ended December 31, 2003, the Plan's investments (including investments purchased, sold, as well as held during the year) appreciated in fair value as determined by quoted market prices as follows: Net appreciation in fair value of investments: Delta Air Lines, Inc. Common Stock $ 63,824 Mutual Funds 9,969,585 ----------- $10,033,409 =========== The fair value of individual investments that represent 5 percent or more of the Plan's net assets is as follows: DECEMBER 31 2003 2002 ------------------- American Century Investments: Ultra Fund $23,560,330 $16,208,190 Premium Capital Reserve Fund 8,795,993 7,843,676 International Growth Fund 4,725,562 3,043,475 Equity Income Fund 8,494,333 5,551,856 Equity Index Fund 9,363,251 6,621,612 Value Fund 5,049,939 2,781,075 Delta Air Lines, Inc. Common Stock 6,023,702 4,467,902 Atlantic Southeast Airlines, Inc. Investment Savings Plan Notes to Financial Statements (continued) 4. TRANSACTIONS WITH PARTIES-IN-INTEREST The Plan purchased 272,608 shares of Delta common stock with a fair value of $3,135,592 during the year ended December 31, 2003. The Plan sold 131,805 shares of Delta common stock for proceeds of $1,643,616, resulting in a loss of $514,027 based on historical cost during the year ended December 31, 2003. The Plan held 510,051 and 369,248 shares of Delta common stock with a fair value of $6,023,702 and $4,467,902 as of December 31, 2003 and 2002, respectively. 5. INCOME TAX STATUS The Plan has received a determination letter from the Internal Revenue Service dated May 16, 2003, stating that the Plan is qualified under Section 401(a) of the Internal Revenue Code (the "Code") and, therefore, the related trust is exempt from taxation. Once qualified, the Plan is required to operate in conformity with the Code to maintain its qualification. The Plan Administrator believes the Plan is being operated in compliance with the applicable requirements of the Code and, therefore, believes that the Plan, as amended, is qualified and the related trust is tax exempt. 6. TRANSFERS TO RELATED PLAN Participants who terminate employment with the Company to begin employment for Delta are not permitted to take a distribution of their account balance, but may elect to sell their investments in the Plan and transfer the proceeds to the Delta Family-Care Savings Plan (the "Delta Plan"). There were no transfers to the Delta Plan during 2003. Supplemental Schedule Atlantic Southeast Airlines, Inc. Investment Savings Plan EIN: 58-1354495 Plan No.: 001 Schedule H, Line 4i Schedule of Assets (Held at End of Year) December 31, 2003 (C) (B) DESCRIPTION OF INVESTMENT (E) IDENTITY OF ISSUE, INCLUDING MATURITY DATE, RATE OF CURRENT (A) BORROWER, LESSOR OR INTEREST, COLLATERAL, PAR, OR VALUE SIMILAR PARTY MATURITY VALUE American Century Premium Capital Reserve Fund $ 8,795,993 Investments American Century Short-Term Government Fund 2,483,454 Investments American Century Balanced Fund 2,236,535 Investments American Century Equity Index Fund 9,363,251 Investments American Century Equity Income Fund 8,494,333 Investments American Century International Growth Fund 4,725,562 Investments American Century Ultra Fund 23,560,330 Investments American Century Value Fund 5,049,939 Investments * Delta Air Lines, Inc. Common Stock 6,023,702 * Chase Manhattan Bank Money Market Fund 11,580 * Participant Loans Interest rates from 4.4% to 9.1% Maturing through 2008 1,899,408 ----------- $72,644,087 =========== * Indicates a party-in-interest to the Plan. Note: Column (d) cost information is not applicable for participant directed investments. SIGNATURES THE PLAN Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized. ATLANTIC SOUTHEAST AIRLINES, INC. INVESTMENT PLAN /s/ Charles J. Thibaudeau -------------------------------------- By: Charles J. Thibaudeau Plan Administrator Date: June 28, 2004