Link Your TSA PreCheck Number to JetBlue Online

You add TSA PreCheck to your JetBlue booking by entering your Known Traveler Number (KTN) in your reservation. The fastest way is to log into your JetBlue account on jetblue.com, go to "Manage Booking," find the flight you want to update, and look for a field labeled "Known Traveler Number" or "TSA PreCheck." Paste your nine-digit KTN there and save the changes. JetBlue will then display a TSA PreCheck indicator on your boarding pass.

If you do not yet have a JetBlue account, you can create one for free using your email address. Once logged in, you can add your KTN to any existing reservation or to your profile so it appears automatically on future bookings. The change takes effect when ready and will show on your digital boarding pass in the JetBlue app or on your printed pass at the airport.

You can also add your KTN when you first book a flight. During the passenger information step, there is a field for "Known Traveler Number." Enter it there, and it will be attached to that reservation from the start.

Key Takeaways

  • Your TSA PreCheck Known Traveler Number is a nine-digit code you receive when you enroll in TSA PreCheck through the official TSA website or an approved enrollment center.
  • You enter your KTN into JetBlue's booking system either when you first reserve a flight or by editing an existing reservation in your account.
  • Adding your KTN to your JetBlue profile means it will automatically appear on all future boarding passes without you having to enter it each time.
  • Your boarding pass must display the TSA PreCheck indicator for you to use expedited screening lanes at the airport.

Where to Find Your Known Traveler Number

Your KTN is issued when you complete TSA PreCheck enrollment. If you enrolled through the TSA's official website (tsa.gov), you received your nine-digit number in a confirmation email or in your account dashboard. Check your email inbox and spam folder for a message from TSA with the subject line containing "PreCheck" or "Known Traveler."

If you enrolled at an in-person enrollment center, the staff member gave you a receipt with your KTN printed on it. Look for a nine-digit number labeled "Known Traveler Number," "KTN," or "TSA PreCheck Number." If you cannot find your receipt, log into your TSA PreCheck account at tsa.gov using the same email and password you used to enroll. Your KTN appears in the account dashboard.

If you have never enrolled in TSA PreCheck, you will need to do that first before you can add a number to JetBlue. Enrollment happens online or at an enrollment center and costs money, so make sure you have completed that step before looking for your KTN.

Adding Your KTN During Checkout

When you book a new JetBlue flight on jetblue.com or the JetBlue app, the Known Traveler Number field appears during the passenger information section. It is usually near the fields for your name and date of birth. Type or paste your nine-digit KTN into that field before you complete your purchase.

The field is optional, so you can skip it and add your KTN later. However, adding it at booking time means your boarding pass will show the TSA PreCheck indicator from the moment you receive your confirmation, and you will not have to remember to add it before you arrive at the airport.

Updating an Existing Reservation

To add your KTN to a flight you already booked, log into your JetBlue account and select "Manage Booking." Enter your confirmation number and last name, or search for the flight in your account. Once you find the reservation, click "Edit" or "Manage Passengers."

Look for the "Known Traveler Number" field next to the passenger name. If the field is blank, click on it and enter your nine-digit KTN. Save your changes. The update usually takes effect within minutes, and your new boarding pass will display the TSA PreCheck indicator when you read it from the app or print it at home.

You can make this change up until 24 hours before your flight. If you are already at the airport and realize you forgot to add your KTN, you can ask a JetBlue agent at the ticket counter to add it to your boarding pass, though this is not always possible depending on how close you are to departure.

Adding Your KTN to Your JetBlue Profile

If you want your KTN to appear on every JetBlue boarding pass automatically, add it to your account profile. Log into jetblue.com, go to "Account Settings" or "My Profile," and look for a section called "Travel Information" or "Preferences." There is a field for "Known Traveler Number" — enter your nine-digit KTN there and save.

Once you save your KTN to your profile, it will populate automatically on all future JetBlue reservations under that account. You will not have to enter it again for each flight. If you book a flight as a guest without logging in, the KTN will not be added, so always log into your account when you book if you want the automatic feature to work.

What Happens at the Airport

When you arrive at the airport, your boarding pass should display a TSA PreCheck indicator — usually a small logo or the words "TSA PreCheck" printed on the pass. Show this pass to the TSA agent at security. They will direct you to the TSA PreCheck lane, where you can leave your shoes, belt, and light jacket on, keep your laptop and liquids in your bag, and move through screening faster than the standard line.

If your boarding pass does not show the TSA PreCheck indicator, tell the TSA agent that you have an active TSA PreCheck membership and provide your KTN. They can manually verify your status, though this takes longer than having it printed on your pass. To avoid this delay, always check your boarding pass before you leave home and confirm that your KTN was added correctly.

TSA PreCheck is valid for five years from the date you enrolled. When your membership is close to expiring, you will receive a notification from TSA. Renew your membership through tsa.gov before it expires, and your new KTN will work with JetBlue the same way your current one does.

Troubleshooting Common Problems

If you entered your KTN but it is not showing on your boarding pass, first check that you typed it correctly — it is a nine-digit number with no spaces or dashes. Log back into your reservation and verify the number matches what TSA sent you. If it does match, wait a few hours and check again, because the system sometimes takes time to update.

If your boarding pass still does not show the TSA PreCheck indicator after several hours, contact JetBlue customer service through the app, website, or by phone. Have your confirmation number and KTN ready. They can manually add it to your reservation or troubleshoot why the system did not accept it.

If you are not sure whether your TSA PreCheck membership is still active, check your account at tsa.gov. Log in with your enrollment email and password, and your dashboard will show your membership status and expiration date. If your membership has expired, you will need to renew it before your KTN will work with any airline.

Frequently Asked Questions

Can I use someone else's TSA PreCheck number on my JetBlue ticket?

No. Your KTN is tied to your identity and your TSA PreCheck enrollment. You can only use your own KTN on your own boarding pass. If a family member has TSA PreCheck, they need to add their own KTN to their own reservation.

What if I do not have TSA PreCheck yet?

You will need to enroll in TSA PreCheck through tsa.gov or at an approved enrollment center before you can add a KTN to JetBlue. Enrollment involves an process, background check, and in-person appointment. Once you complete enrollment and receive your KTN, you can add it to JetBlue the same way described in this guide.

Do I have to add my KTN every time I book a flight?

No. If you add your KTN to your JetBlue profile, it will appear automatically on all future bookings made under that account. You only have to enter it once in your profile settings. If you book as a guest without logging in, you will need to add it manually to that reservation.

Will my KTN work on other airlines besides JetBlue?

Yes. Your TSA PreCheck KTN works on all U.S. airlines. You add it to each airline's booking system the same way you add it to JetBlue — by entering it in the Known Traveler Number field during booking or in your account profile.

What if my boarding pass does not show TSA PreCheck at the airport?

Tell the TSA agent at security that you have an active TSA PreCheck membership and provide your KTN. They can verify your status manually, though it may take longer than if it were printed on your pass. To prevent this, always read your boarding pass the day before your flight and confirm the TSA PreCheck indicator is there.