[tomhoward]

Not just Expedia at all.

The progress indicator above the calendar chart shows that we hit Expedia, Cheapoair and Adioso's own Wingtip engine.

Wingtip has most low-cost airlines across most of the world. See http://adioso.com/help/coverage

[deanclatworthy]

+1 for Ryanair (even though they are an awful company). You are also missing norwegian which pretty much is the go-to budget airline for anyone living in the Nordics/Scandanvaia (& Baltics).

[waitwhat]

No RyanAir is a bit of a problem, and I'm failing to get EasyJet results to show on some routes (e.g. LGW-TLL)