You check your boarding pass for the gate, seat number, and boarding time.
Then you notice four identical letters that were not there on your last trip.
They look insignificant, but they can change how you move through the airport.
Even experienced travelers can be caught off guard by this unfamiliar code.
Here is what those letters mean—and how to prepare without unnecessary worry.
Finding “SSSS” on a boarding pass can raise an immediate question: Is something wrong with my ticket?
The code concerns security screening rather than your seatassignment. Understanding it beforehand can help you allow extra time and
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