Check your tickets people!

For many travelers, simply getting through the airport can feel overwhelming. Delays on the way to the terminal, long security lines, and unexpected flight disruptions can quickly turn an exciting trip into a stressful experience. And all of that happens before most people even glance at the fine print on their boarding pass.

Airport security has grown increasingly strict over the years, and while most passengers understand that extra precautions are necessary for safety, being singled out for additional screening can still feel unsettling. It is especially frustrating when it happens despite doing everything correctly and having no reason to expect closer inspection.

One small but important detail to watch for on boarding passes for flights to or from the United States is the code SSSS. This does not indicate wrongdoing. It stands for Secondary Security Screening Selection, which means the Transportation Security Administration has selected you for more thorough inspection at the checkpoint.

Travel influencer Jordyn Verzera brought attention to this in a TikTok video she shared in 2024. In the video, her partner JT Mocarski goes through the process after being flagged with the SSSS code. He is asked to remove every item from his bag, submit his belongings for swabbing, and power on his laptop so officers can verify it is functional. The experience is noticeably more detailed than standard screening and can take considerably more time.

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