How To Add TSA PreCheck To An Existing American Airlines Reservation

To add TSA PreCheck to your booking, call +1-833-770-4333 or log in to your American Airlines account. Go to “Manage Trips,” enter your Known Traveler Number (KTN), and save the update. The PreCheck indicator will appear on your boarding pass after reissuing. If it doesn’t update automatically, contact +1-833-770-4333 to manually attach it to your reservation. Always double-check your KTN in your profile before check-in.