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We're a tech company focused on making online travel better. Compare hundreds of travel sites at once. Choose where to book. Our website and mobile app enable you to easily compare hundreds of travel sites with one search. Once you find what you want, we let you choose where to book (most travel sites do not).

We offer local versions of KAYAK in over 30 countries and 18 languages. Each year we process over one billion queries for travel information, and our free mobile app has been downloaded over 40 million times. KAYAK is an independently managed subsidiary of The Priceline Group.

KAYAK is excited to join OPEN! We are especially interested in partnering with advertisers on premium marketplace deals. We offer several ad unit sizes (300x250, 160x600, and 300x600). Targeting includes verticals (flight, hotel, car, package) and audience segments (luxury, economy, leisure, business, and family travelers). Please contact us for more information.