Can I add my TSA PreCheck to an existing reservation?

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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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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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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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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On the Trips screen of the app, select the existing trip to which you want to add the number. Find the names of the passengers included in the reservation. Click on a name to see the TSA numbers link, and click on that link. Type in your Known Traveler Number and save it by clicking the Add number button.

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If you are unclear why you are not receiving the TSA PreCheck® indicator on your boarding pass, first check that your membership has not expired by looking up your KTN (Known Traveler Number) here. If your KTN is still active, confirm with your airline that your KTN, name, and date of birth are accurate.

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Most airlines instruct you to log in to your profile and edit your existing reservation in order to add your KTN. For Frontier Airlines, log in to My Trip and have your confirmation code ready. Likewise, you need to go to My Trips to update your existing reservation with Spirit.

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No. The system checks your KTN against the name, gender, and birthdate on the ticket. The system will let you add any number you want, but the boarding pass will never actually show the symbol if the number doesn't match the ticketholder.

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A Known Traveler Number (KTN) is issued to all individuals approved to receive TSA PreCheck® expedited screening. The KTN must be added in the KTN field when booking airline travel reservations to have the TSA PreCheck® indicator appear on your boarding pass.

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How long does it take to get approved? 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. TSA will notify members with eligibility results.

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Adding KTN after booking flight
  1. Head to delta.com.
  2. Sign in or tap on your name in the top right and click My Profile.
  3. Under the my information or something similar to that, there should be a spot to put your KTN. You can always use Ctrl/cmd + f too.
  4. Your KTN will automatically work for all future flights too.


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Yes, other members of your group can usually go through TSA PreCheck if you have it. However, each person must meet the requirements and be approved for PreCheck separately. To do this, they must complete an enrollment process with the Transportation Security Administration.

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

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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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Perhaps the fastest way to get your KTN at this point is by signing in to the TTP website. If you applied for TSA PreCheck online, for example, you may have sign-in information to manage your application and membership. After signing in to the program's portal, you should be able to locate your KTN.

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It's the agent's own initials (or sometimes signature), providing a very informal paper trail of who checked the passenger's ID. The agent will also highlight SSSS (Secondary Security Screening Selection) if it appears on your boarding pass, indicating that you have been selected for additional screening.

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A Known Traveler Number (KTN) is issued to all individuals approved to receive TSA PreCheck® expedited screening. The KTN must be added in the KTN field when booking airline travel reservations to have the TSA PreCheck® indicator appear on your 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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