I have had pretty good luck in getting an AC refund (approx. 1 week) but a really horrible time in getting a refund from Expedia. I once had a reservation (for Xmas vacation)through Expedia for my family (5 pax) from jfk to snn. The flight times were changed thus making connecting flights impossible. Expedia informed me that a refund would be no problem as it was the airlines fault for the schedule change but it would take 90 to 120 days. After questioning this policy of waiting so long for a refund I was bounced around from agent to agent to supervisor etc., promised that I would receive a call back etc.and never did.I was also cut off four times. After sending a bunch of emails and threatening legal action, I received my refund in 9 days. As far as I am concerned, Expedia is the worst travel company to deal with.