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American Airlines online check-in: when it opens and closes

American Airlines online check-in opens 24 hours before departure and closes 45 minutes before departure. The times change with the route, airport or fare, as the table below shows.

Online check-in opens
24 hours before departure
Online check-in closes
45 minutes before departure
Where to check in
American Airlines website or mobile app
Last verified

Open American Airlines online check-in (aa.com)

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When does American Airlines online check-in open?

American Airlines online check-in opens 24 hours before the scheduled departure time.

When does American Airlines online check-in close?

American Airlines online check-in closes 45 minutes before the scheduled departure time.

American Airlines check-in times by route and fare

Applies to Opens Closes Note
Domestic 24 hours before 45 minutes before
International 24 hours before 90 minutes before

What American Airlines says

These times come from pages published by American Airlines, last checked on October 30, 2026. Airlines change their rules, so confirm on the airline's page before you travel.

  • starting 24 hours before and up to 45 minutes before your flight (90 for international).

    Source: aa.com

See the check-in time for your own flight

Forward your American Airlines booking confirmation to Tineo and the flight shows when check-in opens and closes for that departure, with a button to the airline's check-in page. How Smart Check-In works.

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Online check-in times for every airline we have verified