What Is a Known Traveler ID (KTN) and How Does It Work?

Learn what a Known Traveler ID (KTN) is, how to find it, and how it helps you access expedited airport security screening.

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Known Traveler ID (KTN) is a unique number assigned to travelers who participate in trusted traveler programs like TSA PreCheck, Global Entry, NEXUS, or SENTRI. Include this number when booking flights to access expedited security screening. You can find your KTN in the approval letter from the program or by logging into your account on the official program website.

FAQs & Answers

  1. What is a Known Traveler ID (KTN)? A Known Traveler ID (KTN) is a unique number assigned to individuals enrolled in trusted traveler programs like TSA PreCheck, used to access expedited airport security screening.
  2. Where can I find my Known Traveler ID? You can find your KTN in the approval letter from your trusted traveler program or by logging into your account on the official program website.
  3. How do I use my Known Traveler ID when booking a flight? Include your Known Traveler ID in the appropriate field when booking flights to ensure eligibility for expedited security screening with TSA PreCheck or similar programs.

Watch More

For more information on trusted traveler programs and how to simplify your airport experience, check out our related guides on TSA PreCheck enrollment, Global Entry benefits, and tips for faster airport security.

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