Exhibit 23.1


                          CONSENT OF ERNST & YOUNG LLP


      We consent to the reference to our firm under the caption "Experts" in
Amendment No. 1 to the Registration Statement (Form S-3) and related Prospectus
of USA Interactive and to the incorporation by reference therein of our report
dated February 6, 2003, with respect to the consolidated financial statements of
USA Interactive included in its Annual Report, for the year ended December 31,
2002 and the related financial statement schedule included therein, filed with
the Securities and Exchange Commission.


                               /s/ Ernst & Young LLP

New York, New York
May 27, 2003