Discover How Do You Add TSA PreCheck® to United Airlines?. Learn the simple steps to enroll in TSA PreCheck® and link it to your United Airlines frequent flyer account. Benefit from shorter security lines, keeping your shoes, jackets, and belts on, and not having to remove laptops and liquids from your carry-on bags. Make your travel hassle-free and efficient by taking advantage of TSA PreCheck® with United Airlines. Say goodbye to long security queues and hello to smoother, stress-free travel experiences.