To compare Kayak airline fares, enter departure and destination airports, select Flexible Dates, check comparison sites such as Priceline, Hotwire and Expedia under Compare vs. Kayak and click Search. Click Airline Matrix in the column on the left side of the search results to compare Kayak ticket prices by airline and number of stops, and click comparison sites in the right column to compare Kayak prices with those listed on competitor sites.
Kayak's airline matrix's top line displays the nonstop air prices in price order from left to right with the cheapest fare on the left. The matrix also shows each airline's for flights with one or more stops and highlights the cheapest fares in orange.
The airline fares also appear in a list in price order with the cheapest first. Click Segment at the top right of the list to compare available flights by departure times. Click Airline Fees in the left column to view a table comparing different airlines' fees for checked baggage, meals, pets, unaccompanied minor service and seat assignment. Click Create A Price Alert in the top left corner to receive electronic alerts when fare prices change.
Kayak offers a number of filters to help refine a search, including airlines and cabin type. Beneath the filters are sliders to determine the maximum duration of layovers and the price range.