I didn't see this question posed anywhere, but I have a $350.00 discount code because of travel credit expiration. I was wondering, can I still make flight changes to a flight that I purchase with the $350.00 code, or is that not allowed? I am pretty certain I wouldn't be able to cancel and take wallet credit for a more unspecified flight in the future, but would Alaska allow me to just change my flight that I purchased and pay any difference if the new flight costs more or eat the difference if the new flight is cheaper?