In 2026, the physical experience of going through a TSA PreCheck lane at the airport usually takes less than 5 minutes, which is significantly faster than the standard 20-30 minute wait in general security. However, the "application process" takes longer. After submitting your online application, you must attend a 10-minute in-person appointment for fingerprints and a background check. Once that is done, most travelers receive their Known Traveler Number (KTN) in just 3 to 5 days, though the TSA officially advises it can take up to 60 days if there are complications with your background check. Once you have your KTN and it is linked to your boarding pass, the time saved is immense: you don't have to remove your shoes, light jacket, or belt, and your laptop and "3-1-1" liquids can stay tucked inside your bag, making the terminal experience feel much more like "private" travel rather than a public transit scrum.