As frequent travelers know, TSA PreCheck can be a real time-saver at airport security. But what if you forget that all-important PreCheck number? Don’t panic – you have options for retrieving it.

If you’re short on time, here’s a quick answer: Log into your TSA account online or call the TSA Cares helpline to request your number. You can also bring your boarding pass to an agent at the airport.

In this comprehensive guide, we’ll go over ways to look up your forgotten TSA PreCheck number before you get to the airport, how to get help at the airport, steps for changing the number, and tips to avoid this situation altogether.

Retrieve Your TSA PreCheck Number Online

Log Into Your TSA Account

If you have forgotten your TSA PreCheck number, don’t worry! You can easily retrieve it online. The first step is to log into your TSA account. Visit the official TSA website and locate the login section. Enter your username and password to access your account.

Pro Tip: If you can’t remember your login details, there is an option to recover your username or reset your password. Just follow the provided instructions and you’ll be back in your account in no time!

Find Your PreCheck Number Under ‘My Info’

Once you have successfully logged into your TSA account, navigate to the “My Info” section. Here, you will find all the relevant information related to your TSA PreCheck membership. Look for your PreCheck number, which is a unique identification number assigned to you when you were approved for the program.

Important Note: Your PreCheck number is not the same as your Known Traveler Number (KTN). While the KTN is used for various trusted traveler programs, the PreCheck number specifically pertains to TSA PreCheck.

If you are having trouble locating your PreCheck number, don’t panic! The website provides clear instructions and guidance to assist you in finding it. You may also want to check your email inbox, as the TSA usually sends an email with your PreCheck number after your application is approved.

Remember, having your TSA PreCheck number handy is essential when booking flights or making reservations. It allows you to enjoy the benefits of expedited security screening, saving you time and hassle at the airport.

Contact TSA Cares for Assistance

Call the TSA Cares Toll-Free Helpline

If you lost or forgot your TSA PreCheck number, the easiest way to retrieve it is by calling the TSA Cares helpline at 1-855-787-2227.

TSA Cares is a dedicated customer service center for travelers with disabilities, medical conditions or other special circumstances. They can look up your known traveler number in the TSA PreCheck system.

The TSA Cares toll-free line is available 24 hours a day, 7 days a week. Call volumes may be higher at peak travel times, so you may experience a short wait.

Provide Your Info for Lookup

When you call TSA Cares, be prepared to verify your identity by providing:

  • Full name as it appears on your ID
  • Date of birth
  • Home airport

You will also need to answer identifying questions similar to those asked when applying for the TSA PreCheck program, such as addresses where you have lived over the past 5 years.

This information allows the TSA Cares agent to look up your known traveler number in the system without compromising your data security.

Get Your TSA PreCheck Number Over the Phone

Once the TSA Cares agent verifies your identity, they can provide your 9-digit TSA PreCheck number over the phone. Be sure to have a pen ready to write it down.

You should receive your number right away in most cases. The call typically takes less than 10 minutes once you reach a live agent.

If your identity cannot be verified over the phone, the agent may request you come to the airport in-person with your ID. But in most cases, TSA Cares can assist over the phone.

After getting your forgotten TSA PreCheck number, add it to your flight profiles and reservations so it’s handy for future trips. Or save the number in your wallet next to your ID.

Contacting TSA Cares is the fastest and easiest way to retrieve your lost known traveler number. With some personal details ready, you’ll be on your way to breezing through PreCheck lines in no time.

Ask an Agent at the Airport

Bring Your Boarding Pass to Security

If you find yourself at the airport and realize that you have forgotten your TSA PreCheck number, don’t panic! There are steps you can take to retrieve it and ensure a smooth travel experience. One option is to approach a TSA agent at the airport for assistance.

When you arrive at the security checkpoint, make sure to have your boarding pass ready. It’s important to note that not all airports have agents readily available, so be prepared to ask a security officer if you don’t see one right away.

Politely Request Help Finding Your Number

Once you have located a TSA agent, approach them politely and explain your situation. It’s always helpful to be prepared and have any relevant identification, such as your driver’s license or passport, on hand. Kindly ask the agent if they can assist you in finding your TSA PreCheck number.

Remember, agents are there to help and are accustomed to dealing with various travel-related issues. They will do their best to help you retrieve your number promptly.

Agent Can Look It Up in the System

Most TSA agents have access to a database that contains traveler information, including TSA PreCheck numbers. They can look up your number using your personal identification details, such as your name and date of birth.

The agent will verify your identity and provide you with your TSA PreCheck number. It’s important to treat the agents with respect and gratitude for their assistance. Remember, they are there to ensure the safety and efficiency of your travel experience.

Change Your TSA PreCheck Number

If you have forgotten your TSA PreCheck number, don’t worry – you can easily change it by following a few simple steps. Here’s what you need to do:

Log Into TSA Account Online

The first step in changing your TSA PreCheck number is to log into your TSA account online. Visit the official TSA website and navigate to the login page. Enter your username and password to access your account.

If you don’t already have an account, you can create one by providing the necessary information.

Go to ‘Edit My Info’ Section

Once you are logged in, look for the “Edit My Info” section. This is where you can make changes to your TSA PreCheck information, including your known traveler number. Click on the appropriate link or button to access this section.

Update Your Known Traveler Number

Within the “Edit My Info” section, you will find a field labeled “Known Traveler Number” or something similar. This is where you can update your TSA PreCheck number. Simply enter your new number in the designated field and save the changes.

Make sure to double-check the accuracy of the number before submitting it.

Once you have successfully updated your TSA PreCheck number, it may take some time for the changes to reflect in the system. Therefore, it is recommended to check your account status and verify the update after a few days.

Remember, keeping your TSA PreCheck information up to date is crucial for a smooth and hassle-free travel experience. By following these steps, you can easily change your TSA PreCheck number and ensure that your travel plans are not affected.

Tips to Avoid Forgetting Your PreCheck Number

Save the Number in Your Phone

One of the easiest ways to avoid forgetting your TSA PreCheck number is to save it in your phone. Create a new contact with your PreCheck number and name it something memorable, like “TSA PreCheck.” This way, you can quickly access your number whenever you need it, whether you’re at the airport or filling out an online form.

Take a Pic of Your KTN Card

Another useful tip is to take a picture of your Known Traveler Number (KTN) card. This card is given to you after your TSA PreCheck application is approved. By having a digital copy of your KTN card on your phone, you’ll always have your PreCheck number readily available.

Plus, having a visual reminder can also help jog your memory if you ever forget the number.

Add Number to Frequent Flyer Profiles

If you’re a frequent flyer, it’s a good idea to add your TSA PreCheck number to your frequent flyer profiles. Many airlines allow you to store this information in your account, making it easily accessible when you book flights.

By adding your PreCheck number to your profile, you won’t have to worry about remembering it every time you fly.

Remember, forgetting your TSA PreCheck number can be a hassle, especially when you’re in a rush at the airport. By following these tips and keeping your number easily accessible, you’ll save time and ensure a smooth travel experience.

So, don’t let forgetfulness get in the way of enjoying the benefits of TSA PreCheck!


Forgetting your TSA PreCheck number doesn’t have to ruin your airport experience. With a few simple steps to look it up or change it, you can breeze through security and get back to comfortable travels. Keep your PreCheck number handy, and enjoy all the perks this program offers!

Using the methods outlined here, frequent travelers can quickly recover their TSA PreCheck number and get back to speedy security screenings. Safe travels!

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