For a DEN-ORD flight, the check-in page offered me a $109 upgrade to First Class on a 757-200 aircraft. If I did this, would it change my booking code (currently in Y code/class) to A or F or something else? Reason I'm asking is I will be earning US Airways Dividend Miles on this and only A/F class on United earns me a bonus in Dividend Miles.
Anyone have any experience with these paid upgrades?
Anyone have any experience with these paid upgrades?