What is Kayak and can it help me in planning my next trip? Kayak is a website that will provide a rundown of the flights, hotels, vacation deals and car rentals in a format that will allow you to compare prices across several sites for purchasing travel. I usually will check Kayak to get a broad picture of the price range of whatever travel item I am looking to buy. It is a simple way to get travel quotes from the major travel suppliers such as Orbitz, Travelocity , Expedia, etc. in just a few easy clicks rather than going to each individual site and typing in the same travel request multiple times. As a busy mom, any tools to help narrow down the time involved in booking travel is much appreciated.