Kayak combines top travel websites
Their slogan “Search One and Done” sums up the service. Kayak is a travel search engine. It combines the results of all the top travel websites. It was launched by people responsible for launching other discount services. These services include Expedia, Orbitz, and Travelocity. Kayak works as a gateway to these travel websites. They support advertising agreements with over 4,000 travel suppliers.