How to Make Changes on Flights with American Airlines Changes on Flights Flight changes are so widespread that air companies actually make flights believe that a certain percentage of promised passengers fail a special flight. If the plane can be shown to more passengers, then the airline asks volunteers to accept vouchers for later flight. American Airlines issues approximately 250 such vouchers until February 2011. Airlines offer several options for booking your itinerary again. The amount of time remaining till the flight affects your available options. Flights Leaving Today STEP 1 To change your reservation with a representative on the phone, call American Airlines at 1-888-344-2183. Applies a change fee. Your new flight to determine which should be within 12 hours of the call. STEP 2 If you are already at the airport then use a self-service kiosk to change your flight. Swipe your passports, such as credit card or personal identification, such as your passport to activate the kiosk and find your reservation. Follow on-screen instructions to airline change flight if there is a different flight. A change fee applies, which you can pay directly on a kiosk via a credit card. Print a new boarding pass from the machine. STEP 3 If you are at the airport, talk to an American Airlines representative at the airport counter. It can give you a list of flight options for your destination within the next 12 hours. A change fee applies, which you can pay directly to the representative. If he does not offer you an offer then ask for a new boarding pass. Flights Leaving Anytime STEP 1 Click on the "My Reservations" options on the AA (American Airlines) home-page. STEP 2 Using your AA.com account certificates Find Login or that flight you want to change your record locator code. The record locator is six characters long and your itinerary should appear on the confirmation. STEP 3 Check the box to the left of the reservation you want to change. Click on the "Change Flight" button. If this button is missing or deep, then your flight is not eligible for online changes; You must contact the American Airlines Reservations Desk by phone. STEP 4 Search for your new flight when prompted. Select your replacement flight and click on "Continue" Confirm changes, and submit payment for any applicable change fees and/or difference in fares. If your flight expires in the next 24 hours, then print your new boarding pass.