American Airlines Online Check-In Guide (2026)
American Airlines check in opens 24 hours before departure and closes 45 minutes before domestic flights (90 minutes for international). You can complete American Airlines check in via aa.com, the AA app, or airport kiosks using 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.
Frequently Asked Questions
- How do I check in for American Airlines?
- You can check in for American Airlines starting 24 hours before departure at aa.com, the American Airlines app, or at airport kiosks. Enter your confirmation code or AAdvantage number, select passengers, confirm seats, and download your boarding pass.
- Can I change my reservations online after I check in?
- No, you cannot change your reservation online once you have checked in. Contact Reservations for assistance.
- What if I already checked in, but cannot make my flight?
- Contact Reservations prior to your flight's departure to retain the value of your ticket.
- When do I need to provide my U.S. Resident Card?
- When you have indicated the United States as your country of residence and your passport nationality is other than the United States.