On KAYAK you can create one by signing in and going directly to Price Alerts in your account or you can look for the "Track Prices" button on the top left-hand side of flight results. If you're searching hotels, select "Set Price Alert" at the top right of the hotel results list. If you're on our app, you can get to Price Alerts using the app's navigation menu and follow instructions there.
Search cheap flights with KAYAK. Search for the cheapest airline tickets for all the top airlines around the world and the top international flight routes. KAYAK searches hundreds of travel sites to help you find cheap airfare and book a flight that suits you best. Since KAYAK searches many plane tickets sites at once, you can find cheap tickets from cheap airlines quickly.

trivago is a hotel search with an extensive price comparison. The prices shown come from numerous hotels and booking websites. This means that while users decide on trivago which hotel best suits their needs, the booking process itself is completed through the booking sites (which are linked to our website). By clicking on the “view deal” button, you will be forwarded onto a booking site where you can complete the reservation for the hotel deal found on trivago.
A simple flight search at https://www.kayak.com/flights scans for prices on hundreds of travel sites in seconds. We gather flight deals from across the web and put them in one place. Then on the search results page you can use various filters to compare options for the same flight and easily choose the best flight deal from all of the deals coming straight from the travel sites to your screen, with no extra fee from KAYAK.
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