Luckily, UpgradedPoints has put together a study identifying the absolute worst airports for long security lines in the United States in 2026. UpgradedPoints created the list by identifying the 25 busiest airports in the U.S. and calculating average wait times, using data published by the Transportation Security Administration (TSA). While wait times can be unavoidable due to busy travel seasons or poor management, there are some things you can do to decrease your own time in line. Above all, make sure everything you bring is in compliance with current TSA guidelines to help save you time and stress. Regardless of what verifications you have or how you pack, make sure to arrive early if you're departing from any of these five airports in 2026.