Has anybody else ever had a fraud alert with Tripsta? That sounds pretty worrying. I see that they are also listed on http://www.flipit.com/nz/tripsta and I think they are usually quite picky in what websites they publish. Am thinking about booking a flight to San Francisco to go hike the PCT and looking for the cheapest flight. Would you say Tripsta is the best bet? I hear a lot of chatter about Skyscanner.com, but Skyscanner must take some commission on the tickets you buy through them right? So how can they be cheaper than booking at the cheapest airline directly?