That's because the passengers whose boarding passes bear these four letters have been pre-selected for additional security screening.

"SSSS stands for Secondary Security Screening Selection and it appears on a passenger’s boarding pass when they’ve been selected by TSA’s Secure Flight system for enhanced security screening," a TSA spokesman told Business Insider in a statement.

According to the TSA, the meaning of "SSSS" has been public knowledge for years. However, the average traveller would be hard pressed to find reliable information on the mysterious four-letter designation without approaching the TSA.

In that same statement, the TSA explained the system used to select passengers for secondary screening.

"Secure Flight is a risk-based passenger pre-screening program that enhances security by identifying low and high-risk passengers before they arrive at the airport by matching their names against trusted traveller lists and watchlists," the agency said.

Secure Flight collects only basic personal information like full name, date of birth, and gender, "necessary to conduct effective matching," the TSA told us. In addition, Secure Flight is also used to prevent those on the No Fly List and the Centers for Disease Control's Do Not Board List from getting on planes.

When a passenger has an SSSS on their boarding pass, they typically won’t be able to print it out online and will be told they’ll need to go to the airport to do so. If this is the case for you, you’ll want to give yourself at least 30 minutes of additional time to make sure you make your flight.

Additionally, if you're interested in getting off of the list, you can apply for a Redress Number.



https://www.sagetravels.com/if-these-four-letters-appear-on-your-boarding-pass-get-ready-to-be-investigated-at-the-airport/

lalasticlala , mynd44 seun Justwise Pls tell your Family and Friends especially the ones that like going to the airport late.

True.. but nothing mysterious about it na.. no be 666

While cases like buying a last-minute one-way flight that is pricey or paying for a flight in cash could sometimes land you on this list