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TSA Precheck® program

United MileagePlus

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The Transportation Security Administration (TSA) manages and operates an expedited security screening program, allowing certain travelers to move through security more quickly and easily when departing from participating airports in the U.S. Eligible travelers do not need to remove shoes, laptops, liquids, belts or light jackets. Children ages 12 and under may accompany an eligible traveler through TSA Pre®. TSA, not United, selects travelers for expedited screening.

As of February 2017, TSA has significantly reduced access to TSA Pre® expedited screening for non-enrolled travelers. TSA strongly recommends that travelers who make at least three roundtrips per year enroll in a Department of Homeland Security (DHS) Trusted Traveler program, such as TSA Pre®, Global Entry®, NEXUS or SENTRI, depending on where you travel, to obtain access to expedited security screening.

Enroll in TSA Pre® or another DHS Trusted Traveler Program

Travelers may become eligible for TSA Pre® security screening by:

Members of the U.S. Armed Forces, including those serving in the U.S. Coast Guard, Reserves and National Guard, can use their 10-digit Department of Defense (DoD) identification number as the KTN.

For your convenience, the DHS Trusted Traveler webpages can be accessed on select Wi-Fi-equipped aircraft (subject to availability).

Enter your Known Traveler Number (KTN) to participate in TSA Pre®

After your application is approved by DHS, you will receive a KTN/PASS ID number. To receive expedited screening benefits, where available:

  1. Add your KTN/PASS ID/DoD ID number to your MileagePlus profile or add it to your reservation each time you book travel.
    • To save a KTN to your MileagePlus profile, the gender and date of birth must already be entered. Members who need to add/edit the name, date of birth or gender may do so at Please allow 14 days for changes to take effect.
  2. Your KTN/PASS ID/DoD ID number must be linked to your MileagePlus number no later than seven days before your next flight.
    • If adding a KTN to your MileagePlus profile within seven days of your next flight, then also add the KTN directly to the reservation so TSA knows you are eligible.
    • You can update existing United reservations through the "Edit traveler information" option in Manage Reservations or on an airport kiosk. Reprint your boarding pass if adding a KTN after checking in.
  3. Book reservations using the name, date of birth and gender listed on the government-issued ID you used to apply.
    • Your United reservations may combine your middle name with your first name. If your middle name was included when the reservation was made, then this information is sent to TSA as part of your Secure Flight Passenger Data, and any difference in how your name is displayed on your boarding pass will not prevent you from receiving TSA Pre® benefits.
  4. A TSA Pre® logo or “TSA PRE” must be printed on your boarding pass near your name. Presenting a Trusted Traveler card, TSA approval letter or other documentation alone will not grant TSA Pre® access.

If you have difficulties receiving expedited security screening benefits, reconfirm your KTN and then review the traveler information data in your reservation. Correct any errors and reprint your boarding pass. In addition, you may need to correct the profile used to book the reservation as well as any other existing reservations. If you continue to have difficulties, please contact TSA Customer Service for assistance. TSA, not United, selects travelers for expedited screening.

Please visit the TSA website or contact TSA for additional details, including enrollment instructions, a list of participating airports and checkpoint schedules. Note that not all airports offer TSA Pre®.

TSA uses unpredictable security measures, both seen and unseen, throughout the airport. All travelers will be screened, and no individual is guaranteed expedited screening.

Finding your KTN/PASS ID/DoD ID number

Participants in CBP's Global Entry, NEXUS or SENTRI program should visit the Global Online Enrollment System website to obtain their PASS ID, which is their KTN, or check the back of their card in the upper-left corner. An example PASS ID is shown below.

Shows the trusted traveler number on the back of the card, in the upper left corner under the "PASS ID/Numéro d'identification" label. Do not include the portion beginning with "SC."

Participants in the TSA Pre® application program should visit the Universal Enroll website to obtain their KTN or refer to their notification letter. Members of the U.S. Armed Forces, including those serving in the U.S. Coast Guard, Reserves and National Guard, should visit the TSA's Member of the Military Web page or refer to the back of their Common Access Card to obtain their DoD ID number.

Read the United privacy policy