Check your status online through the TSA website

The fastest way to learn about you have TSA PreCheck is to visit the official TSA PreCheck website at tsa.gov/precheck and use their membership lookup tool. You will need your Known Traveler Number (KTN), which appears on your PreCheck card or approval letter, or you can search by your driver's license number or passport number instead.

The lookup tool will show you whether your membership is active, when it expires, and which airports recognize your PreCheck status. If you do not remember your KTN, you can find it on any boarding pass from a flight where you used PreCheck, or on the physical card that was mailed to you after approval.

Key Takeaways

  • The TSA PreCheck membership lookup at tsa.gov/precheck is the official way to confirm your status and expiration date using your KTN, driver's license, or passport number.
  • Your Known Traveler Number appears on your PreCheck card, approval letter, and any boarding pass where you used PreCheck benefits.
  • PreCheck membership lasts five years from the date you were approved, and you can renew it online or in person before it expires.
  • If you cannot find your KTN or the lookup tool shows no record, contact the TSA PreCheck customer service line at 1-855-347-8371 to verify your account.

Look for your PreCheck card or approval letter

When you were approved for TSA PreCheck, you received a physical card in the mail and an approval letter with your Known Traveler Number printed on both. Check your mail from the past five years — the card is a standard ID-sized credential with your photo, name, and a nine-digit KTN on the front.

If you cannot locate the card, the approval letter is equally useful. It was sent to the address you provided during your process and includes your KTN, approval date, and expiration date. Many people keep this letter in a file or drawer even after the card arrives.

Check your boarding passes and airline account

Any boarding pass from a flight where you used PreCheck will display your KTN in the barcode or text section. Look at old boarding passes from the past five years — if your KTN appears, you have active PreCheck. You can also log into your frequent flyer account with any airline you fly regularly; most airlines display your KTN in your profile if it is on file.

If you see a KTN on your boarding pass or in your airline account, that confirms you have PreCheck and it was active on that flight date. Write down the number so you can use it for the TSA lookup tool or to add to future bookings.

Contact TSA PreCheck customer service directly

If you cannot find your card, letter, or KTN anywhere, call the TSA PreCheck customer service line at 1-855-347-8371. They are available Monday through Friday, 8 a.m. to 10 p.m. Eastern time, and Saturday and Sunday, 9 a.m. to 8 p.m. Eastern time. Have your driver's license or passport ready when you call.

The customer service team can confirm whether you have an active PreCheck membership, provide your KTN, tell you when it expires, and help you troubleshoot if your status is not showing up at airport kiosks. They can also walk you through the renewal process if your membership is about to expire.

Understand your PreCheck expiration date

TSA PreCheck membership is valid for five years from your approval date. Your approval letter and membership card both show the exact expiration date. You can renew your membership up to six months before it expires, either online through the TSA website or by visiting an enrollment center in person.

If your membership has already expired, you will not see PreCheck benefits at airport security even if you enter your old KTN when booking a flight. The TSA website will show your membership as inactive, and you will need to renew it to use PreCheck again.

What to do if the lookup tool shows no record

If you search the TSA PreCheck website and get no results, there are a few possible reasons. You may have entered your information incorrectly — double-check the spelling of your name and the numbers in your driver's license or passport. You may also be searching under a different name than the one you used to explore (for example, a maiden name versus a married name).

If you are certain your information is correct and still see no record, your process may not have been processed yet, or there may be a technical issue with the lookup tool. Call customer service at 1-855-347-8371 to confirm your status. They can also tell you if your process was denied and why.

Frequently Asked Questions

What is a Known Traveler Number and why do I need it?

Your Known Traveler Number is a nine-digit code assigned to you when you are approved for TSA PreCheck. You enter it when you book a flight so the airline knows to add PreCheck benefits to your boarding pass. Without your KTN on your boarding pass, you will not get expedited security screening even if you have an active membership.

Can I check my PreCheck status on my airline's website?

Most airlines let you view your KTN in your frequent flyer account profile, which confirms you have PreCheck on file with them. However, the official TSA website is the most reliable source for your actual membership status and expiration date. Airline records can sometimes lag behind TSA records by a few days.

What happens if my PreCheck membership expired?

Once your membership expires, you lose PreCheck benefits at security checkpoints. You can renew your membership online through the TSA website or at an enrollment center up to six months before expiration. Renewal takes about the same time as a new process — typically a few days to a few weeks.

Do I need my KTN to renew my PreCheck?

No. You can renew online using your driver's license or passport number, and the TSA will pull up your existing record. You do not need to remember your KTN to start the renewal process, though having it on hand can speed things up.

Why is my PreCheck not showing up at the airport even though I have an active membership?

The most common reason is that your KTN was not entered when you booked your flight. Check your boarding pass to see if your KTN appears. If it does not, contact your airline to add it before you go to the airport. You can also verify your membership status on the TSA website to confirm it is still active.