I had DELTA flights to STT from ATL on October 6. I called Delta(Customer support) this past Sunday and asked if I could cancel these (nonrefundable) tickets and get a CREDIT for later travel to STT. Delta was kind enough to give FULL credit for flights to future Delta travel booked within the next year. No change fees.

I realize this is "above and beyond" what the ticket contract was for, but I applaud Delta for this response. Hopefully, American Airlines and others will do likewise.