Can I add my TSA PreCheck number to an already booked flight?

Can you add TSA PreCheck to an existing reservation Delta? Yes, those reservations can also be updated to add your PreCheck number.



Yes, you can almost always add your Known Traveler Number (KTN) to a flight that has already been booked, provided you do so before checking in. Most major airlines allow you to manage this through their website or mobile app under the "Manage Trip" or "Edit Passenger Details" section. By entering your KTN, the system should automatically update your reservation and place the TSA PreCheck indicator on your boarding pass. If you have already checked in, you may need to un-check yourself, update the information, and then re-check in to see the logo. If you encounter technical issues online, a gate agent or check-in desk representative at the airport can manually add the number for you. However, it is vital to ensure that the name on your flight reservation exactly matches the name on your TSA PreCheck account, as even a minor discrepancy (like a missing middle name) can prevent the system from validating your status and granting you access to the priority lane.

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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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TSA PreCheck® is available when you depart from a U.S. airport to a foreign country, and for domestic, connecting flights after you return to the United States. If you travel internationally four or more times a year, consider enrolling in Global Entry instead of TSA PreCheck®.

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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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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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For TSA officers, the machine helps them quickly recognize valid, expired or fraudulent IDs. The unit also seamlessly connects to the Secure Flight database, which confirms information like an individual's travel date, airline and flight number, making a boarding pass simply not necessary.

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

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Applying for Global Entry is more of a hassle than TSA PreCheck. Here's why: Passport: You must already have a valid passport to apply for Global Entry. Getting a passport comes with its own costs and paperwork.

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Some airports have Security Checks while entering the Departure Gate. So once you pass through airport security, you might have to do that again before boarding as well (depends on the airport). There is no other Airport Security check once you are already in the terminal, finding Boarding Gate.

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The United Kingdom doesn't have Pre-Check (a U.S.-government entity, so duh!) or CLEAR (a U.S.-based company that hasn't gone international yet).

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The only potential downsides of Global Entry is that it requires fingerprinting and background check and costs $100 every 5 years. Scheduling and completing your Global Entry interview can also be a hassle, which is why taking advantage of Enrollment on Arrival can be wise.

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UK citizens are eligible for Global Entry, but must first apply with the UK Home Office before submitting a Global Entry application. UK citizens will apply through GOV.UK and pay a £42 processing fee.

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