If there's any lesson to be learned about Aloha Airlines wrapping up business and shuttering operations, it's that you should buy your tickets with a credit card. Why?
Let's say you paid cash, check, or debit for your ticket. Your money is gone - out of your bank account forever... at least until you file your claim with bankruptcy court. So maybe a year later you might get your money back... or maybe just a portion of it depending on how the repayment proceedings go.
Now a credit card... all you have to do is contact your credit card company and voila. You get a credit on your statement. The credit card company now has to file in bankruptcy court to get their money back, but YOU don't have to worry about a thing.