I have just been looking at tickets to the US. My intent was to stop for a few days in Japan or Malaysia, and book the first and second leg separately.<p>I checked flying Tokyo->Minneapolis and was given a few prices, in the $1100 range without having to rely on sprint etc.<p>I then checked KL->Minneapolis and got a price for $700 that flew first to Tokyo with AA. When I tried buying just the Tokyo->Minneapolis leg for the same flights I was quoted $4000!<p>Airplane routing and pricing is really unclear and deliberately opaque.<p>While I am glad this service exhists, it reminds me of early SEO and search engine wars. If this gets popular enough, this loophole will be closed.