To change your name on an American Airlines account, sign in to your AAdvantage profile online and go to the account settings or personal information section, where you'll find an option to edit your name details. You can also contact American Airlines customer service directly by phone or through their website's chat feature for assistance. Changes made to your account name should sync with your reservation system, though if you have existing reservations, you may need to contact the airline to modify the name on individual bookings, as reservations and account profiles sometimes operate separately. For legal name changes, be prepared to provide documentation such as a marriage certificate, divorce decree, or court order. When changing your name on active reservations or tickets, note that your legal name on your ID must match your ticket name for check-in and boarding. If you've already purchased tickets under an old name and want to update them, contact American Airlines directly rather than assuming account changes automatically apply to past reservations. The process typically takes a few hours to a couple of days to fully propagate through their system. Keep in mind that airline policies around name changes may have specific rules about what constitutes a valid change (minor corrections versus legal name changes) and whether fees apply, so reviewing their current policy or speaking with a representative ensures you follow the correct procedure for your situation.