Requesting flight changes or upgrades on American Airlines is a smooth process. Passengers can log into their account on the airline’s official site and follow the online steps under the manage my booking section, and make American Airlines Upgrade to First Class or other flight changes in no time. Otherwise, directly call the toll-free customer care number and ask the flight representative to change the flight information on your behalf. https://www.onlinereservationbooking.com/american-airlines-seat-upgrade #Discounts, #reservation, #booking, #offers, #Tickets, #AmericanAirlinesUpgrade