Whether you are looking for your renewal date, your Known Traveler Number or which credit cards and loyalty programs cover your application fee. You can find it all at tsa.gov/precheck.

Your TSA PreCheck number, officially known as a Known Traveler Number (KTN), can be found in several places depending on how you enrolled. If you applied directly through the TSA (IdentoGO or Telos), you can visit the official TSA website and use the "Look Up KTN" tool by providing your name, date of birth, and contact information. If you received PreCheck through a program like Global Entry, NEXUS, or SENTRI, your KTN is the 9-digit PASSID number located on the back of your physical membership card. Additionally, once you have successfully used your KTN for a flight, it is often stored in your airline loyalty program profile (e.g., Delta SkyMiles or United MileagePlus) under the "Personal Information" or "Travel Documents" section. It is a good idea to check your approval email or the notification letter sent via mail, as the number is clearly printed there. Remember that simply having the number isn't enough; you must manually enter it into each airline reservation in the "Known Traveler Number" field to ensure the "TSA PRECHK" indicator appears on your boarding pass. If it's missing from your pass, you won't be allowed into the expedited lane at the airport.