jlw29,
I just contacted USAir when I saw the price for my flight had dropped and while they said they couldn't issue a credit to my Visa card, they would send me a voucher for the difference to use on a future domestic flight. The catch is, that once I book the next flight, I have to go to a USAir ticket agent within 24 hrs. to turn in the voucher. This means,for instance, if I book another flight this Sat. on the phone and want to apply the voucher to the price, I have to go to a USAir ticket agent by closing on Sun. to present the voucher and pick up my ticket. It is a bit of a hassle, but it may be worth it.
I just contacted USAir when I saw the price for my flight had dropped and while they said they couldn't issue a credit to my Visa card, they would send me a voucher for the difference to use on a future domestic flight. The catch is, that once I book the next flight, I have to go to a USAir ticket agent within 24 hrs. to turn in the voucher. This means,for instance, if I book another flight this Sat. on the phone and want to apply the voucher to the price, I have to go to a USAir ticket agent by closing on Sun. to present the voucher and pick up my ticket. It is a bit of a hassle, but it may be worth it.