Add TSA PreCheck to your Qatar Airways flight calling 1-866-284-2457 for assistance or by entering your KTN online. To add TSA PreCheck to your Qatar Airways flight, log in to your booking on the Qatar Airways website or mobile app. Navigate to the “Manage Booking” section and enter your Known Traveler Number (KTN) under the passenger details. Ensure your full name matches exactly with your TSA PreCheck enrollment. If you’ve already checked in or face issues adding your KTN online, contact Qatar Airways customer service. Once successfully added, your boarding pass will display the TSA PreCheck indicator, allowing you to enjoy expedited security screening at participating U.S. airports for a smoother travel experience.