UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 30, 2008

United Parcel Service, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code (404) 828-6000

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

On May 30, 2008, United Parcel Service, Inc. (the “Company”) entered into a Distribution Agreement, dated as of May 30, 2008 (the “Distribution Agreement”), with Merrill Lynch, Pierce, Fenner & Smith Incorporated, (the “Purchasing Agent”), with respect to the offer and sale by the Company of up to $500,000,000 aggregate principal amount of notes (the “Notes”) with maturities of 9 months or more from the date of issuance. As of May 30, 2008, the Company had sold an aggregate principal amount of $267,429,000 of Notes. Accordingly, the Company may offer and sell up to an additional aggregate principal amount of $232,571,000 of Notes under this program. The Notes will be issued pursuant to an Indenture, dated as of August 26, 2003 (the “Indenture”) between the Company and The Bank of New York Trust Company, N.A., as successor to Citibank, N.A., as Trustee.

The Notes will have the maturity ranges, interest rates and other terms set forth in the prospectus filed by the Company with respect to the Notes on May 30, 2008, as it may be amended and supplemented from time to time by the Company in accordance with the Indenture, and the terms agreements between the Purchasing Agent and the Company. The Distribution Agreement sets forth, among other things, that the Purchasing Agent may purchase the Notes from the Company at the public offering price, less a discount, which will vary depending on the maturity of the Notes. The Distribution Agreement includes customary representations, warranties and covenants by the Company. It also provides for customary indemnification by each of the Company and the Purchasing Agent against certain liabilities arising out of or in connection with the sale of the Notes and customary contribution provisions in respect of those liabilities. The Company reserves the right, in its sole discretion, to suspend solicitation of offers to purchase Notes at any time for any period of time or permanently. In the ordinary course of their respective businesses, the Purchasing Agent and certain of its affiliates have engaged in the past, and may in the future engage, in investment banking and other commercial banking dealings and financial advisory services with us and our affiliates, including outstanding loan commitments to us and our affiliates, for which they have received customary fees and commissions.

The foregoing description of the material terms of the Distribution Agreement is qualified in its entirety by reference to the Distribution Agreement, which is attached hereto as Exhibit 10.1 to this report and is incorporated herein by reference.

(d) Exhibits

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.