American Airlines Online Check-In Guide (2026)
American Airlines online check-in opens 24 hours before departure and closes 45 minutes before domestic flights (90 minutes for international). Check in via aa.com, the AA app, or airport kiosks with your confirmation code.
Check-In Timing
| Airline | American Airlines (AA) |
|---|---|
| Check-In Opens | 24 hours before departure |
| Check-In Closes | 45 minutes before domestic flights, 90 minutes before international flights |
| Check-In URL | https://www.aa.com/check-in |
| Mobile App | American Airlines app (iOS, Android) |
| Mobile Boarding Pass | Yes |
| Airport Kiosk | Yes |
Step-by-Step Check-In Guide
1. Visit aa.com or open the American Airlines app. 2. Enter your confirmation code or AAdvantage number. 3. Select passengers to check in. 4. Choose or confirm your seat assignment. 5. Add any bags or extras. 6. Download or print your boarding pass.
Documents Needed
Booking confirmation code, passport for international flights, visa if required, and U.S. Resident Card if applicable.
Seat Selection
Seat selection is available during check-in. You can pay for preferred, Main Cabin Extra, or First Class seats, or wait until 24 hours before the flight when you check in to select from remaining seats.
International Check-In Rules
Check-in closes 90 minutes before international flights. Passport details are required. If your destination requires specific travel documents or a visa, you must check in at the airport counter for document verification.
Group Check-In
Groups of 10 or more can book together. For standard check-in, multiple passengers on the same reservation can check in together using the confirmation code.
Troubleshooting
1. 'Unable to check in online' - May require document verification at the airport for international flights. 2. 'Cannot change reservation' - Once checked in, changes must be made by contacting Reservations. 3. 'Boarding pass not available' - Some international flights require a printed boarding pass at the airport.