EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Registration Statement of United Parcel Service, Inc. on Form S-8 of our report dated January 29, 2002, appearing in the Annual Report on Form 10-K of United Parcel Service, Inc. for the year ended December 31, 2001. /s/ Deloitte & Touche LLP Atlanta, Georgia June 18, 2002