A daring new TikTok trend known as the "Airport Theory" is making waves online, urging travelers to challenge conventional airport norms by arriving just 15 minutes before their flight’s boarding time. The idea, popular among Gen Z creators, suggests that if you've already checked in online and are only carrying hand luggage, you can bypass long waits and head straight to the gate.

Michael DiCostanzo tested this theory at Atlanta’s notoriously busy Hartsfield-Jackson International Airport. With TSA PreCheck and no checked baggage, he filmed himself reaching the gate with just three seconds to spare—14 minutes and 57 seconds from entrance to gate. However, the trend isn’t foolproof. Another TikToker, Jenny Kurtz, documented how she missed her flight to Chicago while attempting the same stunt.

Travel experts are warning that this trend, while thrilling for some, is a risky bet that can lead to missed flights and added stress. Nicole Campoy Jackson of Fora Travel noted that unpredictable airport variables—like sudden security delays or technical malfunctions—make this a gamble not worth taking. Even with trusted traveler programs like TSA PreCheck, there’s no guarantee everything will go smoothly.

Jackson admitted that she has cut it close in the past but stresses the opposite experience is more common: “I’ve never been early and missed a flight, but being late has cost many travelers dearly.”

The viral Airport Theory may feel like a rush, but experts agree—don’t try this if you can’t afford to lose the flight.