The Surprising Reason Some Boarding
What the Code Means
Air travel can be stressful, especially with delays and security checks.
One detail many passengers overlook is the four-letter code “SSSS”
on a boarding pass, which stands for “Secondary Security Screening Selection.”
Why It Appears
The code is part of the TSA’s Secure Flight program, used at U.S.
airports to assess risk before passengers reach checkpoints.
The system compares details like name and
date of birth against government watchlists and trusted traveler programs.
What It Does—and Doesn’t—Mean
Being marked with “SSSS” does not mean suspicion of wrongdoing.
It is often random or triggered by factors such as last-minute bookings,
international travel, or incomplete reservation information.
What to Expect
Passengers selected may face extra bag checks, explosive swabs, or closer ID verification.
Knowing what “SSSS” means helps travelers prepare,
stay calm, and move smoothly through the additional screening process.
