<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by StuMcIlwain:
I asked AC a few months about what happens to a non-refundable domestic ticket if it isn't used, and I was told you get charged the $145 up front. They then give you the value of the ticket as credit. </font>
I repeat, it depends on the fare basis that was used. Some of the deep discount fares are 100% non-refundable and no credit is available for use in the future. I know, I personally hold one of these worthless tickets.