[hugh3]

All I see is schedules of direct flights, making it orders of magnitude less useful than, say, hipmunk.

If it could plot non-nonstop routes and quote me prices for specific days, then it'd be really disruptive. But as it is, if I want to go somewhere surely I'll take the extra few seconds to check a proper travel site?

[JeremyBanks]

Did you RTFA? Google's made a recent major acquisition in this field that will give them access to the data you mention, but they haven't had a chance to use it yet; this is a very preliminary product.