American Airlines flight check-in
United States
Quick answer
American Airlines online check-in opens 24 h before departure and closes 45 min before departure. Online check-in is free.
| Online check-in opens | 24 h before departure |
|---|---|
| Online check-in closes | 45 min before departure |
| Check-in fee | online check-in is free |
| Boarding pass | mobile boarding pass, print at home |
| Mobile app check-in | available |
| Self-service kiosks | available |
Times apply to most routes; long-haul, US and some airport-specific deadlines differ. Confirm on the official website before travelling.
How online check-in works
1
Open the airline website or app and enter your booking code and last name
Online check-in
Booking codeA1B2C3
Last nameSMITH
Continue
2
Pick a seat and confirm your travel details
Select your seat
Confirm
3
Download or print your boarding pass
Boarding pass
SMITH / JOHN14A
Online check-in opens 24 hours before your flight and closes 45 minutes before domestic departures or 90 minutes before international flights. There is no fee for online check-in. You can check in via www.aa.com, the American Airlines app, or airport self-service kiosks.
Steps to check in online:
- Visit www.aa.com or open the American Airlines app
- Enter your confirmation code and last name
- Review your flight details and passenger information
- Select or purchase seat assignments if desired
- Add checked or extra baggage if needed
- Receive your boarding pass via email or app
Practical tip: Check in as soon as the 24-hour window opens for popular flights to secure preferred seat choices, especially on routes from major hubs.
Can I check in at the airport instead of online?
Yes. If you do not check in online, you can complete check-in at airport kiosks or ticket counters, though online check-in is faster and recommended to meet the earlier closing time for international flights.
What if I need to change my seat after checking in?
You can modify your seat selection on www.aa.com or the app anytime before departure, subject to availability. Some premium seats may incur additional charges.