Choosing the shortest TSA line isn't always the fastest option, but research suggests that where you stand can make a difference.

Studies on human behavior have found that travelers naturally gravitate toward the center and right-side security lanes. Because of this, the left-most checkpoints are often less crowded and may move faster, especially during busy travel periods.

The people already in line also matter. Solo business travelers and frequent flyers typically move through security more efficiently than large families or groups, who often need extra time to organize bags, strollers, and electronics.

If you have TSA PreCheck, you'll usually clear security even faster. According to the Transportation Security Administration, most PreCheck travelers wait less than 10 minutes because they don't need to remove shoes, laptops, or liquids during screening.

To speed up your own experience, have your boarding pass ready, empty your pockets before reaching the checkpoint, keep liquids organized, and avoid carrying unnecessary items that could trigger additional screening.

The Takeaway: Don't focus only on finding the shortest security line. Looking for less crowded left-side lanes, choosing lines with experienced travelers, and arriving prepared can help you get through airport security more efficiently.