How to add TSA Precheck to Finnair booking?

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How to add TSA Precheck to Finnair booking?


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12/12/2025

Updated On

12/12/2025

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Discover how to add TSA Precheck to Finnair +1-888-760-1051 booking by for quick guidance and seamless assistance to ensure a faster, smoother airport security experience.
Adding TSA Precheck to your Finnair booking can make your travel experience smoother, faster, and more convenient, especially when departing from or connecting through airports in the United States. TSA Precheck allows eligible travelers to pass through expedited security lanes where they are not required to remove shoes, belts, light jackets, laptops, or compliant liquids. If you are booked on a Finnair flight and want this benefit added to your reservation, there are several simple ways to complete the process correctly.
What is TSA Precheck and why it matters for Finnair travelers
TSA Precheck is a trusted traveler program offered by the Transportation Security Administration (TSA) to help passengers experience faster security screening at participating U.S. airports. While Finnair is a foreign carrier, it still participates in TSA Precheck because it operates flights to and from the United States. This means passengers traveling with Finnair can add their Known Traveler Number (KTN) to their booking and enjoy the benefits as long as the departure airport supports TSA Precheck. Having TSA Precheck on your Finnair ticket can save you valuable time at the airport, reduce stress, and ensure a smoother screening process during your journey.
How to add TSA Precheck to your Finnair booking online
One of the most convenient ways to add TSA Precheck to Finnair flights is by updating your booking through the Finnair website. If you already have your KTN and your reservation is active, you can log in and update your traveler details. Start by visiting the Manage Booking section on the Finnair website. Once there, enter your booking reference and last name to access your reservation. After your booking opens, navigate to the passenger information section, where your personal details are stored. Here you can add your Known Traveler Number in the dedicated field labeled KTN or TSA Precheck Number. Make sure the information is entered exactly as provided by the TSA. After saving your changes, the system updates your traveler profile and links the KTN to your upcoming flight. This should allow TSA Precheck to appear on your boarding pass when you check in.
Adding TSA Precheck to Finnair booking through the Finnair mobile app
If you prefer using your smartphone, the Finnair mobile app also lets you update your booking details easily. Log in with your Finnair Plus account or open your reservation using your booking code. Find the passenger details or secure flight information section within the app. Like the website, the app will provide a field where you can enter your Known Traveler Number. Be sure to input the number correctly, verify the spelling of your name, and save the details. Once your KTN is linked to the booking, it will reflect when you check in through the app or at the airport. Using the Finnair app ensures that your travel data stays updated and accessible at all times.
How to add TSA Precheck by contacting Finnair customer service
For travelers who prefer assistance or have difficulty adding TSA Precheck online, calling Finnair customer service is another reliable option. The airline’s representative can access your reservation and manually update your KTN. When contacting support, have your booking reference, passport details, and Known Traveler Number ready. The agent can quickly add the TSA Precheck information and verify that your booking has been updated correctly. This is also helpful if you booked through a travel agency or third-party website, as sometimes these platforms do not allow edits to traveler information after the reservation is confirmed.
Adding TSA Precheck at the airport with Finnair
If you were unable to add TSA Precheck before arriving at the airport, you may still be able to update your information at the check-in counter. Provide your passport, booking reference, and Known Traveler Number to the Finnair staff. They will update your reservation and issue a boarding pass containing the TSA Precheck indicator if everything matches your TSA profile. However, it is always advisable to add TSA Precheck before reaching the airport to avoid delays, especially during busy travel hours.
Ensuring your TSA Precheck appears on your Finnair boarding pass
Once your KTN is added, the next important step is ensuring that TSA Precheck shows on your boarding pass. Even if you have TSA Precheck eligibility, certain details must match exactly between your ticket and your TSA profile for the indicator to appear. Your first name, middle name (if included), last name, and date of birth must all match your TSA Precheck profile. Small variations, including spacing or missing hyphens, can prevent TSA Precheck from being applied. After checking in for your Finnair flight, look for the TSA Precheck indicator on your mobile or printed boarding pass. If it is missing, revisit your passenger details to confirm accuracy or request assistance from Finnair staff.
What to do if TSA Precheck is not applied even after adding your KTN
Sometimes TSA Precheck may not show up even when everything appears correct. If this happens, first check whether the departure airport supports TSA Precheck. Even though Finnair participates, not all airports outside the U.S. have TSA Precheck lanes. Also verify that your Known Traveler Number is active and not expired if it was obtained through a related program like Global Entry. Another possibility is that your name on the booking does not match your TSA profile. In such cases, updating your reservation or contacting Finnair for corrections can resolve the issue. If all else fails, TSA may randomly assign or decline Precheck clearance on certain flights. Checking your status ahead of time can help avoid confusion during your travels.
Consider adding your KTN to your Finnair Plus profile
If you want TSA Precheck to automatically appear on future Finnair bookings, you can save your KTN in your Finnair Plus account profile. This eliminates the need to manually add it every time you book a flight. Log into your Finnair Plus account, go to your personal details, and update the Known Traveler Number in your profile. When you make subsequent reservations while logged into your account, your KTN will automatically populate and apply to eligible flights. This saves time and ensures you never miss the benefits of TSA Precheck due to forgetting to enter your details.
Benefits of having TSA Precheck for Finnair travelers
Having TSA Precheck added to your Finnair booking provides numerous advantages for passengers traveling through U.S. airports. The expedited security lanes usually have shorter wait times, making the screening process faster. You are not required to remove your shoes, belt, or light jacket, which adds comfort and convenience. You can also keep your laptop and liquids in your carry-on bag, making the entire screening experience more efficient. For travelers catching tight connections, this can save valuable minutes and reduce stress. Whether you are flying for business or leisure, TSA Precheck enhances your overall travel experience when flying with Finnair in the United States.
Conclusion
Adding TSA Precheck to your Finnair booking is a simple process that can significantly improve your airport experience. Whether you update your booking online, through the mobile app, by calling customer service, or at the airport, ensuring your Known Traveler Number is correctly added and matches your TSA profile is essential. With TSA Precheck applied, you can enjoy faster, smoother, and more efficient security screening during your journey. By following the steps provided and checking your boarding pass for the Precheck indicator, you can make your Finnair travel experience more comfortable and stress-free.

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