TSA PreCheck simplifies the security process by allowing travelers to bypass regular lines without removing shoes, belts, or electronics. Adding TSA PreCheck to your Southwest Airlines reservation is straightforward, whether you’re updating an existing booking or applying it to a new one. Here’s a step-by-step guide to ensure you’re ready to enjoy expedited screening.
Part 1: Adding TSA PreCheck to Your Southwest Profile
- Log into Your Southwest Account
- Go to Southwest’s homepage.
- Click “Login” in the top-right corner and enter your account details.
- Don’t have an account? Click “Enroll” to create one.
- Access Security Preferences
- After logging in, navigate to “My Preferences” and select “Security” from the menu.
- Enter Your Known Traveler Number (KTN)
- In the “Known Traveler Number” field, input your KTN.
- Click “Save” to store the information for all future bookings.
Pro Tip: Your KTN is the alphanumeric code issued after TSA PreCheck approval (often starts with “TT”). If you’re a Global Entry member, use your PASSID as your KTN.
Part 2: Adding TSA PreCheck to an Existing Southwest Reservation
- Access Your Booking
- Visit the Manage Reservations page.
- Enter your confirmation number, first name, and last name.
- Update Secure Traveler Information
- Locate the option to “Add Secure Traveler Information.”
- Add your KTN and double-check the details (e.g., name and birthdate) match those in your TSA profile.
- Save Changes
- Submit the updated information. Verify your boarding pass later to ensure “TSA PRE” is printed.
Part 3: Adding TSA PreCheck to a New Southwest Reservation
- Book Your Flight
- Begin the booking process as usual on Southwest’s website or app.
- Enter Traveler Information
- On the “Who’s Flying” page, input your KTN in the “Known Traveler #” field.
- Verify Details
- Ensure your name and date of birth align with your TSA PreCheck profile.
- Complete Your Booking
- Finalize your reservation and confirm your PreCheck status by checking your boarding pass for “TSA PRE” before your flight.
Troubleshooting TSA PreCheck Issues
1. Mismatched Information
- Your name, date of birth, or KTN may not match what TSA has on file. Double-check and correct any discrepancies.
2. Incorrect Field Entry
- Ensure your KTN is entered in the “Known Traveler Number” field, not the “Redress Number” field.
3. Expired TSA PreCheck Membership
- TSA PreCheck memberships expire after five years. Renew via the TSA Enrollment website.
4. Boarding Pass Verification
- Check your boarding pass for “TSA PRE” in the upper-left corner or near the QR code on mobile passes.
Tips
- Call Customer Service: If you face issues, contact Southwest at 1-800-435-9792 for assistance.
- Recheck Boarding Pass: If you’ve already checked in and the TSA PreCheck status isn’t reflected, contact customer support.
- Renew Early: Stay proactive and renew your TSA PreCheck before it expires to avoid delays.
Enjoy a faster, hassle-free security process by adding TSA PreCheck to your Southwest flights!



