QuickLinks -- Click here to rapidly navigate through this document
Exhibit 23.3
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption "Experts" in the combined Registration Statement (Form S-4 No. 333-XXXXX) and related Proxy Statement/Prospectus of IAC/InterActiveCorp and Expedia, Inc. and to the incorporation by reference therein of our report dated March 11, 2005, with respect to the consolidated financial statements and schedule of IAC/InterActiveCorp, management's assessment of the effectiveness of internal control over financial reporting of IAC/InterActiveCorp, and the effectiveness of internal control over financial reporting of IAC/InterActiveCorp included in its Annual Report (Form 10-K) for the year ended December 31, 2004, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP |
New York, New York
April 21, 2005
Consent of Independent Registered Public Accounting Firm