The Best Way To Look Up Your Known Traveler Number For TSA PreCheck

We've all been there, getting to the end of booking a flight and realizing we've forgotten our TSA Known Traveler Number (KTN) for TSA PreCheck. If you've ever made it to the end of the booking process and realized you've forgotten to input your KTN, you can use the official TSA PreCheck KTN Lookup website to get it fast so you can breeze through checkout and airport security. TSA PreCheck is one of the best ways to get through security faster and could make the difference between making or missing a flight at a crowded airport.

The program is designed to minimize waiting in airport security lines nationwide, where travelers with TSA PreCheck normally do not have to remove their shoes, coats, 3-1-1 liquids, or larger electronic items from their carry-on bags. Since starting in 2013, the program has added hundreds of enrollment centers across the United States, including those with partner programs such as TelosID, CLEAR, and Idemia. After enrollment, which normally takes just a few minutes, approved travelers will gain a KTN (Known Traveler Number) to make the airport screening process less troublesome.

Your KTN can make your travel experience less stressful, especially if you are a parent or guardian flying with children. Children aged 12 and younger are welcome to use the PreCheck lanes as long as they are flying with a parent/guardian who has TSA PreCheck marked on their boarding pass. For those traveling with children aged 13-17, both you and the child must have PreCheck marked on your boarding pass for expedited screening.

Before you start inputting your personal information, be sure to check the TSA PreCheck KTN Lookup website's URL. It should end in .gov and begin with https:// or have a lock icon in the search bar. Be careful of other websites that may appear to be similar or offer a similar service, as they may be phishing for your personal information. Moreover, most major airlines, including Delta, United, American, and Southwest, will allow you to save your KTN on your travel profile. If you keep your KTN on your personal travel profile, take precautions such as having a strong password to protect your personal information.

Fill out the electronic form exactly the same way as you enrolled in TSA PreCheck, and click "submit" at the end. If there is a mismatch between the information you have input and the information TSA has on file, you will not see a TSA PreCheck logo on your boarding pass at check-in. If this doesn't solve your problem, don't lose hope! Here is what to do if PreCheck isn't on your boarding pass after check-in.

Note that only U.S. citizens, nationals, and permanent residents, are eligible to enroll for TSA PreCheck. If you have Global Entry, NEXUS, or SENTRI, and need to retrieve your PASSID, which functions as your KTN for TSA PreCheck, you will need to visit the Trusted Traveler Program (TTP) website.