The short answer is: you cannot “add” TSA PreCheck directly to WestJet in the same way you might add a seat selection or baggage option. Instead, TSA PreCheck is linked to your traveler identity through your Known Traveler Number (KTN), and WestJet simply transmits that information to U.S. Transportation Security Administration systems when you check in.
In this guide, you’ll learn exactly how TSA PreCheck works with WestJet, how to add your KTN correctly, what to do if it doesn’t show on your boarding pass, and expert tips to avoid common mistakes.
Transportation Security Administration TSA PreCheck is a trusted traveler program that allows eligible passengers to move through expedited security screening at participating U.S. airports.
Instead of removing shoes, belts, laptops, and light jackets, approved travelers enjoy a faster and more convenient security experience.
Faster security lanes at U.S. airports
No need to remove shoes or belts
Keep laptops and liquids in your bag
Shorter wait times (often under 10 minutes)
Available at 200+ airports in the United States
For frequent travelers flying WestJet into the U.S., this program can significantly improve the travel experience.
Yes. WestJet supports TSA PreCheck for eligible passengers traveling on routes to the United States.
However, WestJet does not issue TSA PreCheck itself. Instead, it sends your Known Traveler Number (KTN) to TSA when you check in. If your information is correct and your flight is eligible, your boarding pass will display the TSA PreCheck indicator.
Your Known Traveler Number is the most important piece of information for TSA PreCheck.
TSA PreCheck approval letter
Global Entry membership card
Trusted traveler program dashboard
SENTRI or NEXUS accounts
Your KTN is typically a 9-digit number (or alphanumeric depending on the program).
Adding TSA PreCheck to your WestJet booking is simple if done correctly.
This is the easiest and most reliable method.
Go to the official WestJet booking website
Select your flight to or from the United States
Enter passenger details exactly as shown on your passport
Look for the field labeled:
Known Traveler Number (KTN)
TSA PreCheck / Secure Traveler ID
Enter your KTN carefully
Complete your booking
Always double-check spelling and spacing. Even a small mismatch can prevent TSA PreCheck from appearing on your boarding pass.
If you forgot to enter your KTN during booking, you can still update your reservation.
Go to WestJet “Manage Trips” section
Enter:
Confirmation code
Last name
Open passenger information
Add your Known Traveler Number
Save changes
Re-download your boarding pass
Once updated, your TSA PreCheck eligibility should appear during check-in.
WestJet allows you to enter or update your KTN during online check-in.
Open WestJet check-in (usually 24 hours before departure)
Enter booking details
Locate “Travel Documents” section
Add your Known Traveler Number
Confirm and download boarding pass
If all else fails, airport agents may help.
However, this is not guaranteed because TSA PreCheck eligibility must be processed before boarding pass issuance.
Even when you enter everything correctly, sometimes TSA PreCheck does not appear.
Here are the most common reasons:
Your reservation must match TSA records exactly.
Common issues:
Missing middle name
Nickname instead of legal name
Spelling differences
One wrong digit can invalidate your TSA PreCheck eligibility.
TSA PreCheck is valid for 5 years. If expired, benefits stop immediately.
Not all flights qualify for TSA PreCheck benefits, especially certain international segments.
Even approved travelers may occasionally be excluded due to TSA’s random security screening process.
When you add your KTN, WestJet securely transmits your passenger data to U.S. TSA systems.
The process works like this:
You enter your KTN
WestJet stores it in your reservation
TSA verifies eligibility
Boarding pass is updated with TSA PreCheck indicator
Important: WestJet does not decide eligibility—TSA does.
Here’s a simple comparison:
FeatureTSA PreCheckStandard Screening
Shoes OffNoYes
Laptop RemovalNoYes
Jacket RemovalNoYes
Wait TimeShortLonger
Dedicated LaneYesNo
Many WestJet passengers also consider Global Entry.
FeatureTSA PreCheckGlobal Entry
Fast U.S. SecurityYesYes
Expedited CustomsNoYes
Includes TSA PreCheckNoYes
Best ForFrequent flyersInternational travelers
For WestJet passengers crossing into the U.S., Global Entry is often more valuable.
Do not wait until check-in.
Match:
Passport
Airline account
TSA profile
Always verify TSA PreCheck indicator before arriving at the airport.
If your flight changes, recheck your KTN entry.
Even with TSA PreCheck, international travel requires:
Passport checks
Customs processing
Airline verification
Yes—but only if they are enrolled in eligible programs like:
Global Entry
NEXUS
SENTRI (in some cases)
Canadian citizens cannot directly enroll in TSA PreCheck unless they meet specific eligibility requirements.
Forgetting to add KTN
Using nickname instead of legal name
Assuming all WestJet flights include TSA PreCheck
Not updating profile after passport renewal
Entering expired KTN
Even if everything is correct, TSA PreCheck may not apply if:
You are flying on a codeshare segment not eligible
Your itinerary includes non-U.S. security checkpoints
TSA performs random exclusion screening
Based on publicly available information, TSA does not guarantee 100% PreCheck usage on every eligible flight.
Yes, through “Manage Trips” or online check-in.
Likely reasons include incorrect KTN, name mismatch, or system delays.
No, only eligible U.S.-bound flights qualify.
Only if departing from a U.S. airport with TSA PreCheck lanes.
No, TSA may apply random security screening.
No. TSA PreCheck is a government program, not an airline service.
Immediately after booking or at least 24 hours before departure.
Yes, children under 12 can often accompany eligible parents.
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