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General Travel • Sep 01, 2026 • 4 min read

American Airlines Check-In Guide: Web, Mobile App & Airport Options

Everything you need to know about check-in deadlines, digital boarding passes, and bag drop timelines.

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American Airlines Check-In Guide: Web, Mobile App & Airport Options
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Online check-in opens exactly 24 hours prior to scheduled flight departure. Checking in promptly allows you to secure favorable boarding positions and review last-minute upgrade offers.

Need to cancel or change your flight before check-in? Check our Cancellation Guide and Changes Guide.

Independent Travel Guidance Notice: This guide is an informational and educational resource published by independent passenger rights researchers. It is not published, endorsed, or affiliated with American Airlines, Inc. Airline policies, change fees, baggage rules, and refund criteria are subject to change. Verify current terms directly on aa.com or by calling reservations at +1(888) 829-1465.
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