Kayak Files for $50 million IPO
techcrunch.com
techcrunch.com
I believe that Orbitz will require you talk to someone in order to get access to their api.
My company, Adioso (YC W09) has a free API in beta. It's what's used to power http://destmapper.com/. Coverage is limited but soon to start expanding rapidly. Email me - tom at adioso dotcom - if you're interested.
A really really impressive piece of technology.
2007 Revenues / Net Income: $48M / ($4.36M) 2008 Revenues / Net Income: $112M / $5.1M
Keep in mind they acquired SideStep at the end of 07.
http://www.sec.gov/Archives/edgar/data/1312928/0001193125102...
[1] orbitz, chapoair, hipmunk, expedia, travelocity, farecompare, cheaptickets, hotwire, priceline, kinkaa, zoombu, cheapflights, etc
kayak.com defaults to hotel search now, for example.
As for the IPO... good luck to them!