Faster Airport Security
Why Am I Being Asked for a Known Traveler Number (KTN) When Booking Flights?

Learn why airlines request your Known Traveler Number (KTN) to speed up airport security with TSA PreCheck, Global Entry, and NEXUS benefits.

Airport Security Link
How to Link TSA PreCheck to Global Entry Using Your Known Traveler Number

Learn how to easily link TSA PreCheck to your Global Entry by adding your Known Traveler Number to airline reservations for faster airport security.