Add Your TSA PreCheck Number to Delta During Booking or in Your Profile

You add your TSA PreCheck number to Delta in two places: when you book a flight, or in your Delta SkyMiles account settings before you book. Delta uses this number to match you with TSA PreCheck benefits at the airport — shorter security lines and the ability to keep shoes, belts, and light jackets on during screening.

The fastest route is to add it to your profile once, so it appears on every future booking automatically. If you have already booked a flight without it, you can add the number to that specific reservation up to 24 hours before departure.

Your TSA PreCheck number is a nine-digit code printed on your Known Traveler Number (KTN) card or visible in your TSA account online. You will need this exact number to link it to Delta.

Key Takeaways

  • Add your TSA PreCheck number to your Delta SkyMiles profile under "Frequent Flyer Information" so it carries to all future bookings automatically.
  • If you have already booked a flight, log into your reservation and add the number in the passenger details section up to 24 hours before departure.
  • Your TSA PreCheck number is nine digits and appears on your KTN card or in your TSA account at tsa.gov.
  • Delta displays your TSA PreCheck status on your boarding pass once the number is linked and verified by TSA systems.

Add TSA PreCheck to Your Delta SkyMiles Profile

Log into your Delta SkyMiles account on delta.com or the Delta app. Go to "My Profile" or "Account Settings," then select "Frequent Flyer Information" or "Travel Documents." Look for a field labeled "Known Traveler Number" or "TSA PreCheck Number" and enter your nine-digit code.

Save the changes. Delta will send the information to TSA systems, which typically takes one to two business days to process. Once verified, your TSA PreCheck status will appear on all future boarding passes automatically.

You do not need to re-enter this number for each flight. It stays in your profile until you remove it or update it with a new number.

Add TSA PreCheck to an Existing Reservation

If you have already booked a Delta flight and want to add your TSA PreCheck number, log into delta.com or open the Delta app and find your reservation using your confirmation number and last name. Click "Manage My Booking" or "View/Edit Reservation."

Select the passenger name and look for "Passenger Details" or "Travel Information." Enter your nine-digit TSA PreCheck number in the Known Traveler Number field. Save the changes and confirm the update was accepted.

This must be done at least 24 hours before your flight departs. If you add it closer to departure, TSA systems may not have time to process the update, and your boarding pass may not show the TSA PreCheck indicator.

Find Your TSA PreCheck Number

Your TSA PreCheck number is printed on the front of your Known Traveler Number (KTN) card, which TSA mailed to you when you completed your TSA PreCheck enrollment. It is a nine-digit code, sometimes followed by a dash and additional characters — use only the nine digits.

If you cannot find your card, log into your TSA account at tsa.gov. Click "Manage Enrollment" and select your active TSA PreCheck enrollment. Your Known Traveler Number will be displayed on that page.

Do not use your TSA PreCheck process receipt number or your confirmation number from enrollment. Those are different codes and will not work with Delta.

What Happens After You Add Your Number

Once Delta receives your TSA PreCheck number, it sends the information to TSA systems for verification. This usually takes one to two business days. You will see a TSA PreCheck indicator (often a checkmark or the TSA logo) on your boarding pass once the systems confirm the match.

At the airport, show your boarding pass and a valid ID to the TSA officer at security. The TSA PreCheck indicator tells them you are enrolled, and you can proceed through a TSA PreCheck security lane if one is available at that airport.

Not all airports have dedicated TSA PreCheck lanes. If your airport does not, you will go through standard security screening even though your number is linked. The benefit applies only where TSA PreCheck screening is offered.

Update or Remove Your TSA PreCheck Number

If your TSA PreCheck expires or you enroll in a new program (such as Global Entry, which includes TSA PreCheck), log back into your Delta SkyMiles profile and update the Known Traveler Number field with your new nine-digit code. Save the changes and allow one to two business days for TSA systems to verify the update.

To remove your TSA PreCheck number from Delta, go to the same Frequent Flyer Information section and delete the number from the field. This does not cancel your TSA PreCheck enrollment — it only removes the link from Delta. You can add it back anytime.

Troubleshooting: Your TSA PreCheck Is Not Showing on Your Boarding Pass

If you added your number but it does not appear on your boarding pass, check that you entered exactly nine digits with no extra spaces or characters. TSA systems are strict about format. Log back into your Delta profile and verify the number matches your KTN card or TSA account exactly.

If the number is correct, wait another business day — verification can take up to 48 hours. If it still does not appear after two business days, contact Delta customer service with your confirmation number and TSA PreCheck number. They can check whether TSA systems received and processed the information.

Adding your number to Delta does not may provide it will appear on your boarding pass if TSA systems cannot verify your enrollment. If you have questions about your TSA PreCheck status itself, contact TSA directly through tsa.gov or call 1-855-347-8371.

Frequently Asked Questions

Can I add TSA PreCheck to Delta if I booked through a travel website like Expedia?

No. You must add your TSA PreCheck number directly through Delta — either in your SkyMiles profile or by logging into your Delta reservation. If you booked through a third-party site, log into delta.com using your confirmation number and last name to access your reservation, then add the number there.

Do I need to add my TSA PreCheck number to Delta every time I book a flight?

No. Once you add it to your SkyMiles profile, it appears on all future bookings automatically. You only need to enter it once unless your number changes or expires.

What if my TSA PreCheck number is different from my Global Entry number?

Use your TSA PreCheck number — the nine-digit code on your KTN card. If you have Global Entry, it includes TSA PreCheck, and your Global Entry number may be the same, but Delta specifically asks for the TSA PreCheck number. Check your card or TSA account to confirm which number to use.

Will adding my TSA PreCheck to Delta cost anything?

No. Linking your number to Delta is free. You already paid for TSA PreCheck enrollment when you applied. Delta straightforward connects your existing enrollment to your flights at no additional charge.

How long does it take for my TSA PreCheck to show up on my boarding pass?

Usually one to two business days after you add your number to Delta. If you are flying within 24 hours, add the number as soon as possible, but TSA may not have time to verify it before your flight. Contact Delta customer service if you are cutting it close.