Q. Due to illness, I recently had to cancel a trip I'd booked on Southwest and was surprised when I was issued a credit for the value of my ticket to use on a future flight. Is this common? Do any other airlines do this?!

A. Sadly, the answer is no. Southwest is the only airline that allows passengers to "rebank" the cost of your canceled ticket (yes, even if you bought one of their discounted Ding! Fares) and put it towards your next trip. And they don't charge a penalty fee to do so.