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Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        We consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated March 1, 2006, relating to the consolidated financial statements of priceline.com, Incorporated and subsidiaries (the "Company") and management's report on the effectiveness of internal control over financial reporting, appearing in the Annual Report on Form 10-K of the Company for the year ended December 31, 2005, and to the reference to us under the heading "Experts" in the Prospectus, which is part of this Registration Statement.

/s/  DELOITTE & TOUCHE LLP

Stamford, Connecticut
December 1, 2006

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM