Exhibit 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the use in this Registration Statement on Form S-1 (No. 333-170640) of KAYAK Software Corporation of our report dated March 9, 2012 relating to the financial statements and financial statement schedule of KAYAK Software Corporation, which appears in such Registration Statement. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

Stamford, CT

April 20, 2012