How to Add a KTN to an Existing JetBlue Reservation

At least 24 hours before departure, add your Known Traveler Number (KTN) to an existing JetBlue reservation through Manage Trips > Traveler Details. This is the number that may qualify you for TSA PreCheck on that flight, including when your KTN comes from TSA PreCheck, Global Entry, NEXUS, or SENTRI. After adding it, check that your boarding pass displays “TSA PreCheck” before using the expedited security lane.

What a KTN Is on a JetBlue Booking

A Known Traveler Number is a number you can add to your reservation. It is not your JetBlue confirmation code, flight number, TrueBlue number, or a “flight registration number.”

If you searched for “myKTM number” or “myktm number,” you likely mean a KTN. Enter the KTN exactly as it appears in your Trusted Traveler Program record.

Adding a KTN requests TSA PreCheck consideration, but the TSA PreCheck indicator on your boarding pass is what determines whether you can use the lane.

JetBlue places KTN information under Traveler Details, not under seat selection or bags. That is the most important detail to know when updating an existing booking.

How to Add a KTN to an Existing JetBlue Reservation

Choose the route that fits where you are in the travel process.

Your Situation	Best Way to Add the KTN	Important Detail
You have not checked in yet	Use Manage Trips	Add it under Traveler Details
You are checking in on JetBlue’s website	Add it during online check-in if needed	Online check-in opens 24 hours before departure
You are checking in for a travel-certificate trip	Use a desktop browser or the mobile version of JetBlue’s website	The JetBlue app and airport kiosks cannot add the KTN during that check-in process
The JetBlue app will not let you check in	Use a web browser	JetBlue recommends trying the browser version before going to the airport

Step 1: Open Your Reservation in Manage Trips

Go to JetBlue’s Manage Trips page.
Enter the reservation details requested, such as the confirmation code and traveler information.
Select the reservation to open the Manage Your Trip page.

Use the reservation for the specific traveler whose KTN you are adding. On a reservation with several people, each traveler can have separate traveler details.

Step 2: Select Traveler Details

Look for the links or menu at the top of the Manage Your Trip page.
Choose Traveler Details.
Find the section for TSA PreCheck Known Traveler Numbers.
Enter the traveler’s KTN carefully.
Save or update the traveler information using the on-screen option.

That area also includes travel documents, phone numbers, wheelchairs, and service requests. Do not look under Seats or Bags & Extras.

Step 3: Review the Name and Save the Update

Confirm the traveler details in the reservation before saving the update. Make sure the traveler details and documents match the reservation before saving the update.

After saving, return to the traveler’s details and make sure the KTN is still listed. If you have a TrueBlue account, save the KTN there as well so it is included in your record for future JetBlue reservations.

Step 4: Check In and Look for the TSA PreCheck Indicator

JetBlue online check-in begins 24 hours before departure. Check in through JetBlue’s website or app, then open the current boarding pass.

When You Need to Add the KTN During Check-In

Adding the KTN before check-in is the cleanest approach, but JetBlue also allows it during the online check-in process in some situations.

Checking In on the JetBlue Website

If you are checking in through a desktop browser or the mobile version of JetBlue’s website, you may be able to add the KTN during check-in. This can help if you missed the Traveler Details section earlier.

If the JetBlue app will not complete check-in, switch to a web browser. JetBlue specifically recommends trying the browser version when app check-in is unavailable.

Travel-Certificate Trips

For a travel-certificate trip, use a desktop browser or the mobile version of JetBlue’s website rather than waiting at a kiosk. Update the reservation through the website first, then complete check-in and review the boarding pass.

After You Have Already Checked In

If you have already checked in and need to change reservation details, JetBlue may require you to uncheck in before making changes.

Go to JetBlue’s check-in page.
Enter your name and confirmation code or ticket number.
Select Find Flights, then continue through the check-in screen.
Uncheck in if the site presents that option.
Return to Manage Trips > Traveler Details and add the KTN.
Save the change, then check in again and download a fresh boarding pass.

If Your KTN Does Not Produce TSA PreCheck

Check booking details, use the traveler’s own KTN, and retrieve a newly issued boarding pass to confirm the update.

Confirm the Booking Details Match

Pay close attention to:

First, middle, and last name spelling
Hyphens, spaces, and suffixes
Date of birth
The KTN itself

Use the traveler’s own KTN, not another person’s number from the same reservation.

Confirm You Are Looking at a Newly Issued Boarding Pass

After updating a reservation, refresh the JetBlue app or website and retrieve a newly issued boarding pass.

Plan for Standard Security if the Marking Is Missing

Allow enough time for regular security screening rather than depending on an airport agent or kiosk to resolve a missing marking at the last minute.

Save Your KTN for Future JetBlue Flights

Once the KTN is on the current reservation, add it to your TrueBlue account profile. This helps keep the number in your JetBlue customer record for future bookings.

Still check each new reservation before departure. A review before check-in leaves time for any needed correction.

Frequently Asked Questions

How do I put myKTM number on JetBlue Air?

A “myKTM number” likely means your Known Traveler Number (KTN), and you can add it to an existing JetBlue reservation. Add it at least 24 hours before departure. Open the JetBlue reservation in Manage Trips, choose Traveler Details, and enter the number in the TSA PreCheck Known Traveler Numbers section. Save the update, then make sure the traveler’s name and date of birth match the Trusted Traveler Program record.

How do I add my Global Entry number to a JetBlue ticket?

Use your Known Traveler Number. Open Manage Trips > Traveler Details, enter that number in the TSA PreCheck Known Traveler Numbers section, and save the reservation. Add it at least 24 hours before departure so there is time to complete check-in with the updated traveler information.

Can I add a Known Traveler Number to JetBlue at the airport?

You should add it before arriving at the airport through Manage Trips whenever possible. Use a desktop browser or mobile website to add the KTN during check-in. If online check-in is unavailable, a JetBlue crewmember at the ticket counter can review your reservation, but TSA PreCheck is not assured unless the boarding pass shows the indicator.

Can I add my KTN in the JetBlue app?

You can manage traveler details through JetBlue’s reservation tools, but use the website if the app does not offer the needed option or will not complete check-in. Use a desktop browser or mobile website to add a KTN during check-in.

Why is TSA PreCheck not on my JetBlue boarding pass?

The most common issues are a missing KTN, an incorrect KTN, or traveler details that do not match the Trusted Traveler Program record. Confirm the KTN under Manage Trips > Traveler Details, retrieve a newly issued boarding pass after saving, and use regular screening if the TSA PreCheck marking is still absent.