How to add Known Traveler number to Southwest after booking?

How can you add TSA PreCheck to an existing reservation? Add your KTN through the “Add Secure Traveler Information” webpage. Type in the confirmation number for your flight, along with the first and last name that you used for your flight reservation. From there, you can add your KTN to your previously booked flight.



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How do I add my Known Traveler Number (KTN) to previous reservations? Contact your airline by phone or online to add your Known Traveler Number (KTN).

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Log into your flight reservation under the Traveler Info section and add your KTN there. You must have been approved for TSA PreCheck before you booked the flight in order for it to be used during a trip.

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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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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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If you wish to include an additional traveler, you will need to make a separate booking.

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Yes. 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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Go to the TSA PreCheck website and select the tab that says “Renewal” to begin the process. Provide your KTN, date of birth and legal last name. You'll then be guided through a series of screens that will ask you to confirm your address and passport information and answer some security questions.

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Yes. Members will keep the same KTN during the renewal process.

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Add your KTN to reservations and loyalty program profiles. Add it on the Known Traveler Number Field in the forms. Do not enter your KTN in the redress number data field. Additional note: Verify that your first/middle/last name, gender and correct date of birth exactly as you applied for your KTN.

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What should I do? First, check that your membership has not expired by looking up your account here. If still active, confirm with your airline that your Known Traveler Number, name, and date of birth are accurate and that your airline participates in TSA PreCheck®.

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EarlyBird Check-In can be purchased on Southwest.com®, over the phone, and on the app up to 36 hours prior to a flight's scheduled local departure time, depending on availability. If EarlyBird Check-In is available, you may Purchase EarlyBird Check-In here.

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If you don't find out about the missing PreCheck designation until you're at the airport, take your boarding pass back to the airline check-in counter and ask them to add your KTN to your itinerary — even if you think it's not worth the trouble at that point.

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The Known Traveler # is a unique number issued by the U.S. Government to identify Customers who participate in a known traveler program (e.g. Global Entry, SENTRI, NEXUS, TSA PreCheck Application Process).

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To do so, click on Manage Trip for each reservation. Then, click on Add/Edit Passenger Information to add your PreCheck number.

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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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