Airlines' self-service check-in kiosks save time ... the manufacturer of ticketing kiosks for 21 airlines, including American, United, Delta, Northwest and Continental. ...

On the first leg of my trip, which was from San José, Costa Rica, to Miami, I used an American Airlines kiosk to get my boarding pass, and my Known Traveler Number (KTN) was on my reservation.

American Airlines If you’re flying with American Airlines within the U.S., the deadline for checking in and checking a bag before a flight is 45 minutes ahead of departure, according to the ...