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You’ll be glad to hear that altering your ticket within 24 hours of booking is free of charge. However, based on the situation, this policy may American airlines change flight. If after the 24-hour period you decide to change your flight. The sections that follow provide in-depth details on certain flights. 

 Domestic Flights  

Because domestic flights are free, you can switch to them using tickets for main cabins, premium economies, or premium cabins. If you have a basic budget pricing, you may purchase additional tickets and get benefits like same-day flight modifications. The basic and inexpensive pricing are further discounted for Elite AAdvantage members. 

 International Travel There are no costs for first, business, premium economy, or international flights.

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