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What are the benefits of having a known traveler number?

By contrast, a Known Traveler Number allows travelers to access specially approved security lines and screening processes designed to expedite their wait time. Additionally, unless you are an active member of the military, you pay for this perk.



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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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TSA PreCheck can make the airport security screening process smoother and faster. That's mainly because members can access lines that tend to be shorter and do not have to remove shoes, belts, 3-1-1 liquids, laptops or light jackets.

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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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TSA PreCheck® is currently available at more than 200 airports with 85+ participating airlines nationwide. Eligible passengers can learn where by selecting a state or by entering airport information below.

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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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The application fee for TSA PreCheck® is $78 for 5 years. Before you apply, we recommend that you review the various DHS trusted traveler programs, such as the TSA PreCheck® Application Program, Global Entry, NEXUS, or SENTRI, to ensure you meet the eligibility requirements and determine the best program for you.

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How long is a Known Traveler Number good for? Your membership with a Trusted Traveler Program lasts 5 years. At that point, you will need to renew your membership and pay another fee.

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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. Any child traveling alone routinely may want to enroll in the program.

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If you have a Global Entry or TSA PreCheck membership (or both), the nine-digit Known Traveler Number is used to identify you when booking travel. When you enter a participating entry point, this number can help you pass through the expedited security lane.

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Although members receive a KTN for every trusted traveler program, only Global Entry, NEXUS and SENTRI issue physical membership cards.

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We've long espoused the benefits of Global Entry, which lets travelers breeze past the lines at U.S. customs by checking in at a kiosk. But there are limits to its powers: Global Entry only works upon entry into the U.S., and not to any country around the world.

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There's no TSA PreCheck in Europe (womp womp), but at select Europe airports, travelers can head to the front of the security line, free of charge.

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Global Entry Benefits
  • No processing lines.
  • No paperwork.
  • Access to expedited entry.
  • Available at major U.S. airports.
  • Reduced wait times.


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The short answer is that Clear allows members to verify their identity using biometric scanning ahead of airport security, whereas Global Entry expedites re-entry into the U.S. after international travel. Clear allows you to hurry through security lines faster at 50-plus airports around the United States.

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Global Entry: $100 (includes TSA PreCheck) It costs $100 to apply, and the membership lasts for five years. Some credit cards and elite frequent flyer programs reimburse your application fee.

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Each passenger may carry liquids, gels and aerosols in travel-size containers that are 3.4 ounces or100 milliliters. Each passenger is limited to one quart-size bag of liquids, gels and aerosols.

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TSA PreCheck is one of a few government-run trusted traveler programs, designed to allow members to use expedited security lanes at more than 200 U.S. airports. With TSA PreCheck, you can speed through security without removing your shoes, laptops, belts or jacket.

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Most budget airlines like Frontier, Allegiant, Spirit, and Sun Country all participate in TSA PreCheck. Notable airlines that don't participate in TSA PreCheck include Aer Lingus, China Southern, China Eastern, and EgyptAir.

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