Realize that Google uses a lot of caching to make this fast; the prices are actually pretty stale. The more up to date the information the slower accessing it i

Realize that Google uses a lot of caching to make this fast; the prices are actually pretty stale. The more up to date the information the slower accessing it is. Generating flight itineraries and prices with near realtime availability (especially for today and tomorrow) is incredibly difficult to do. The less often you do it the faster the result can be. Since Google isn't a seller of seats they also avoid all the crap the DOT requires on disclosure and accuracy. I only wish it was possible to do real-time this fast.