How does TSA know if you have PreCheck?

Participating airlines display a TSA PreCheck® indicator directly on your boarding pass if you are eligible for TSA PreCheck based on your provided Known Traveler Number (KTN). Please ensure you add your KTN to your airline reservation while booking the reservation.



People Also Ask

You can also update existing reservations with your TSA PreCheck number. Go to Edit Traveler Information in the Manage Reservations section on the website, at an airport kiosk or in the United app.

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Yes. Customers will be able to find the pre-notification indicator “TSA PRECHK” on the boarding pass underneath the passenger name field. On mobile boarding passes, the PreCheck logo will appear at the top-right corner above the barcode.

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All travelers, including TSA PreCheck® enrollees, must have a REAL ID or other acceptable form of identification (e.g., passport) in order to fly once TSA is enforcing the REAL ID requirement at airports.

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Cadets and midshipmen of the U.S. Military Academy, Naval Academy, Coast Guard Academy, Air Force Academy and Merchant Marine Academy. Passengers 12 and younger traveling with an eligible passenger. Passengers who are selected using existing Secure Flight system requirements while traveling on participating airlines.

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This is a marketing move by the TSA, based on the premise that once people experience the convenience of PreCheck, they'll be more inclined to apply and pay for it. The passengers chosen for free PreCheck are typically frequent flyers or others who don't appear to present a high level of risk.

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Children 12 and under may accompany an enrolled parent or guardian in the TSA PreCheck lanes without restriction. Children 13-17 may join enrolled adults when traveling on the same reservation and if the TSA PreCheck indicator appears on the child's boarding pass.

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You book with an airline that doesn't participate in TSA PreCheck.
  • China Southern Airlines.
  • China Eastern Airlines.
  • EasyJet.
  • EgyptAir.
  • Norwegian Airlines.
  • Qatar Airways.
  • Ryanair.
  • Iceland Air.


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Usually, no, but there are exceptions. These include allowances for the following types of guests who don't have their own TSA PreCheck membership: spouses, children, those with a disability, and active military personnel.

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For Existing Reservations Log into your flight reservation under the Traveler Info section and add your KTN there. You must have been approved for TSA PreCheck before you booked the flight in order for it to be used during a trip.

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The application fee for TSA PreCheck® is $78 for 5 years.

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About 1% of all applications received by Global Entry and TSA PreCheck applications are denied.

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This is an optional process for passengers, who may opt-out of the process at any time and instead choose the standard identity verification by a Transportation Security Officer (TSO).

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Can you bring a guest through TSA PreCheck? Usually, no, but there are exceptions. These include allowances for the following types of guests who don't have their own TSA PreCheck membership: spouses, children, those with a disability, and active military personnel. There are also rules for pets.

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Children 12 and under may accompany an enrolled parent or guardian in the TSA PreCheck lanes without restriction. Children 13-17 may join enrolled adults in the dedicated lanes when traveling on the same reservation and if the TSA PreCheck indicator appears on the child's boarding pass.

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Bonus: If you're 75 or older, TSA usually allows you to go through the security pre-check line, which means you don't have to remove your shoes or separate laptops or liquids from your carry-on.

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As shown in more detail below, this additional screening could be caused by things like: Your name matching a name of interest in a database. You raising suspicions while going through airport security. Your bag getting flagged when going through an x-ray machine.

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As for why you were chosen for pat-down many times we can't really know; Might be just coincidence, or something in your luggage that raise their suspicion. Another possible triggers for pat-down, as others posted in comments: trousers with many layers of pockets - so try to avoid such trousers.

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How Do I Get TSA Precheck for Free?
  1. Aeroplan® Credit Card.
  2. The Platinum Card® from American Express (Terms apply, see rates & fees)
  3. The Business Platinum Card® from American Express (Terms apply, see rates & fees)
  4. Bank of America® Premium Rewards® credit card.
  5. Capital One Venture Rewards Credit Card.


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