Orbitz uses ITA's engine, so, yes, it's the same thing.

Way back last April, I signed up to beta test the engine, and exchanged a lot of emails with the developers over some issues. I just wish they'd pooled all those email addresses and sent a mass mailing when the Orbitz pre-rollout was underway, as until I saw this thread tonight, I hadn't visited the Orbitz.com site since the summer. Oh well.

E