Add TSA Pre to American Airlines: How to Update Your Boarding Pass After Booking
To add TSA PreCheck to your American Airlines reservation, go to aa.com and select “Manage Trips.” Locate your booking, click “Add/Edit Passenger Information,” and enter your Known Traveler Number (KTN) in the security section. Save your changes before check-in. You can also add it at an airport kiosk for convenience. Once you enter your KTN, … Read more