The site recommended I buy 2 one-way tickets from different carriers instead of a single roundtrip in order to save money. I bought the first ticket, but then when I went to buy the second ticket, the original price of $141.00 quoted on Kayak.com was actually $485.00 on Delta's website. Of course I couldn't cancel the one-way ticket I had just purchased. I fly at least twice a month, locally and internationally, and I can say this is the worst travel site I've used (in the U.S., anyway). This site simply quotes the prices I can find at other websites on my own, and it doesn't even quote them accurately!