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How Soon Before a Flight Can You Add Your Known Traveler Number (KTN)?

Learn when and how to add your Known Traveler Number (KTN) to a flight reservation for a smooth TSA PreCheck experience.

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Video transcript

You can add your Known Traveler Number (KTN) to an existing flight reservation up until the point of check-in. For the best experience, add it during booking or well before the flight to ensure a smooth TSA PreCheck process.

Questions and answers

  1. What is a Known Traveler Number (KTN)?

    A Known Traveler Number (KTN) is a unique identifier given to members of trusted traveler programs like TSA PreCheck, which allows expedited security screening at airports.

  2. Can I add my KTN after booking my flight?

    Yes, you can add your KTN to an existing flight reservation up until the point of check-in.

  3. What is the best time to add my KTN to a flight reservation?

    It's best to add your KTN when booking your flight or well before departure to ensure a smooth TSA PreCheck process.

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Continue exploring

For more expert advice on airport security and travel efficiency, explore our guides on TSA PreCheck enrollment, Trusted Traveler programs, and how to optimize your flight check-in process.