American Airlines Tickets and Reservations - Check in Online

American Airlines offers check-in online, and a few of the particulars of their web check-in services:

• American Airlines - Online check-in is available up to 24 hours prior to departure.
• Need reservation number or AAdvantage number and an AA.com password for web check-in.
• Available for flights within the US, Puerto Rico, and the US Virgin Islands.
• You can check in for connecting flights, even with another airline, as long as American Airlines has an e-ticketing agreement with them.
• You can drop off checked luggage at Curb-side Check-in, Self Service Check-in, or with an agent.