Answer should be obvious, but I talked with a US Airways rep and looked at their Web site, but I'm still confused. Both state that with refundable tickets one can make changes for free, and the credit of a canceled ticket can be applied to a new ticket, while for a non-refundable ticket one must pay $250to make any changes. If the fare does say refundable doesn't that mean you'd get a full refund if you choose? Sure, on the face of it it seems obvious, but the rep I talked to by phone didn't portray it as such. This would be for an Envoy class trip (looking for dats whn refundable fare is available).