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  How do I check my reservation or customer service phone number on American Airlines? You can access your reservation from "My Trip/Check-in" at the homepage or pass to "Find a Reservation". After retrieving the reservation, search for the "Change Itinerary" option. If your reserving does now no longer have the "Change Itinerary" option, please touch American Airlines Reservations. You could make a reservation 2 hours earlier than departure. How do I re-book a Cancelled flight from American Airlines? American Airlines customer service phone number American Airlines cancelled flight number Rebook AA flights online. In the "Manage Itinerary/Check-in" field at the homepage of the website, you could now pick to locate cancelled flights. You can search with the aid of using a report locator or ticket number. You will then be taken to a web page that shows your ticket number, authentic ticket trouble date and ticket value. Does A