What the “SSSS” Code on a Boarding Pass Indicates and Why Travelers Sometimes See It

conclusion cannot be made simply from the code appearing on a boarding pass.
How Secure Flight Fits Into the Process

Passenger information for flights covered by U.S. security requirements is processed through aviation-security systems, including the TSA’s Secure Flight program.
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Airlines collect identifying information from passengers and transmit required information for security-related matching and screening purposes.

This is one reason entering personal information correctly when booking an airline ticket is important. The passenger’s reservation should accurately reflect the identifying information required for the trip.

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