Can you apply a known traveler number after booking?

You can always call your airlines directly and ask them to add your KTN to any existing reservations. Here's a list of handy numbers, and prompts, to get you through the hold music quickly.



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Most applicants receive their Known Traveler Number (KTN) in 3-5 days, though some applications can take up to 60 days. Applicants can receive updates on their enrollment application status by email, phone, text or by checking online through the enrollment provider they applied with.

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If you still do not have a TSA PreCheck indicator on your boarding pass, please call the TSA Contact Center at (866) 289-9673, submit an online form, or contact us at @AskTSA on Twitter and Facebook Messenger.

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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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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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Boarding passes If you're eligible for TSA PreCheck, your boarding pass will show TSA PreCheck. If you add your KTN after checking in, you'll need to get a new boarding pass.

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The fastest and easiest way to enroll in TSA PreCheck® is to start the application online.

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Most applicants receive approval notification in 3-5 days, though some applications can take up to 60 days. Considering this, applicants are encouraged to renew at least 60 days prior to expiry.

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A: Yes, you can add a Known Traveler Number after booking American Airlines flights at the official website of the airline. You have to go to 'Manage Trip' and click on 'Edit Traveler Information' and update your KTN or Redress number.

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ACT NOW before your known traveler number (KTN) expires. That's right, your TSA Pre?® eligibility expires after five years. So if you want to keep enjoying your member benefits, renew now before your membership lapses.

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Valid Proof of Citizenship
  • U.S. Birth Certificate.
  • U.S. Certificate of Citizenship (N-560 or N-561)
  • U.S. Certificate of Naturalization (N-550 or N-570)
  • U.S. Citizen Identification Card (I-179 or I-197)
  • Consular Report of Birth Abroad (FS-240)
  • Certification of Report of Birth Abroad (DS-1350 or FS-545)


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If I am TSA PreCheck® eligible, am I guaranteed expedited screening? No, TSA uses unpredictable security measures, both seen and unseen, throughout the airport. All travelers will be screened, and no individual is guaranteed expedited screening.

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Once you complete enrollment and are deemed eligible for the program, wait three to five days for a Known Traveler Number. However, keep in mind that it can take up to 60 days to be approved in some cases. After approval, return to the TSA PreCheck website and click the Check My Service Status link to find your KTN.

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It's a common question: If I have TSA PreCheck, does my wife or husband need it? The answer is yes. If you have TSA PreCheck on your boarding pass and your spouse doesn't, or vice versa, you cannot go through the TSA PreCheck lane together. Period.

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Because not all airlines participate in the program, if you book on a non-TSA PreCheck carrier (not all international airlines are TSA PreCheck partners) you will still have to go through the regular security line—which is why some frequent travelers also opt to purchase a Clear membership.

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TSA PreCheck® provides expedited security screening benefits for flights departing from U.S. Airports. Global Entry provides expedited U.S. customs screening for international air travelers when entering the United States. Global Entry members also receive TSA PreCheck® benefits as part of their membership.

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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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