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What to Do If TSA PreCheck Is Missing From Your Boarding Pass

This guide is for travelers who've paid for TSA PreCheck (or have it through Global Entry) but don't see it on their boarding pass. It covers common causes, quick fixes, and how to avoid last-minute airport stress—helpful for frequent flyers, families, and anyone optimizing airport wait times.

By Global Entry Sooner Editorial TeamUpdated Mar 17, 2026

PreCheck Validity

5 years

KTN Required Every Booking

Yes

Boarding Pass Update Deadline

Before Security

All Airlines Support PreCheck?

No

Don’t lose your time advantage

Missing PreCheck on Your Boarding Pass Is Fixable—If You Act Fast

Even if you’re a paid PreCheck or Global Entry member, you’ll only get access if your boarding pass reflects it. The fix might be as simple as updating your reservation or a quick chat at check-in—but timing is critical, especially during busy airport hours. Here’s how to troubleshoot before you’re stuck in the regular security line.

Step-by-Step: Restore TSA PreCheck to Your Boarding Pass

Don’t head to security yet—try these steps in order to get PreCheck back on your boarding pass.

01

Verify KTN entry or update

Check your Known Traveler Number (KTN) is in your reservation.

Go to the airline’s app or website. Double-check your KTN in ‘Traveler Details’ or ‘Passenger Information’. Edit and save changes if missing or incorrect.

02

Reprint or re-download your boarding pass

Your KTN update won’t appear unless you refresh your pass.

Use the airline’s self-service kiosk, app, or counter to generate a new boarding pass and check for the 'TSA PreCheck' indicator.

03

Ask an agent for help

If a new pass doesn’t show PreCheck, approach an airline desk.

Have your KTN and ID handy. Agents can often manually add your KTN and re-issue your pass.

04

Double-check airline eligibility

Not all domestic carriers or codeshare flights support PreCheck.

Cross-reference your airline with the TSA PreCheck eligibility list if you consistently have issues.

Quick Do’s and Don’ts

Do
  • Enter your KTN with every new booking
  • Match your reservation name exactly to your PreCheck or Global Entry profile
  • Reprint your boarding pass after any profile updates
  • Ask airline staff for help if self-serve fixes don’t work
Do not
  • Assume PreCheck will always apply without checking
  • Wait until security to notice missing PreCheck
  • Rely only on travel agents or third-party booking apps to transmit KTN

TSA PreCheck Recovery: Typical Timeline

1
At Home

Update Reservation Online

5–10 minutes: Log in, fix KTN, reissue pass. Easiest if you catch it pre-airport.

2
At Airport—Before Security

Desk Fix or Reprint

5–15 minutes: Desk/kiosk assistance can usually resolve even during check-in rush.

3
Already at Security

Seek Airline Help or Accept Standard Line

Varies: If not resolved, standard line entry is required. Rare chance of agent override.

Fixing PreCheck: DIY vs. Airline Help

DIY (App/Kiosk)Airline Desk AssistanceOutcome
SpeedFastest if you spot issue earlySlower, especially during peak times; may require waiting in line
Required InfoYour KTN, reservation detailsKTN, government ID, and boarding pass
Availability24/7 via most apps and kiosksDepends on staff hours and airport
Error RecoveryGood for quick typos or missing infoBest for complex cases like name mismatches
GuaranteeNo absolute guarantee; technical glitches possibleOften 100% if agent is thorough and airline participates

FAQ

Common PreCheck Questions

What’s a Known Traveler Number (KTN) and where do I find it?

It’s the number assigned after enrolling in PreCheck, Global Entry, NEXUS or SENTRI—find it in your TTP account online.

Can I update my KTN after checking in?

Yes, but you need to reprint or re-download your boarding pass for it to apply.

Will PreCheck show up automatically if I have Global Entry?

Only if your KTN is in the reservation and your name matches exactly.

What if my flight is operated by a codeshare partner?

PreCheck only works if the operating airline participates in the TSA program.

Never Get Stuck in the Slow Lane

Want less airport hassle? See our full guide to Trusted Traveler programs—and how Global Entry Sooner helps you breeze through both check-in and security.

Explore Trusted Traveler Fast Lanes