Check your boarding pass: If the letters SSSS are on it, expect to spend extra time at security. Here's what triggers SSSS on a boarding pass.

Add Yahoo as a preferred source to see more of our stories on Google. If you're planning to travel by plane anytime soon, you're probably already prepared to go through screening at an airport's TSA ...

The code "SSSS" on a boarding pass stands for "Secondary Security Screening Selection," requiring additional screening at TSA checkpoints. Reasons for the "SSSS" code can include last-minute ticket ...

The letter and number codes on a boarding pass tell a lot about you, including whether you've been chosen for extra screening. Here's what they mean.

Why might I be selected for SSSS? While the TSA doesn't publish exact criteria for meeting SSSS, possible reasons may include ...

Travelers with "SSSS" on their boarding pass will be pulled aside for additional TSA screening. The code stands for Secondary Security Screening Selection. Even travelers with TSA PreCheck, Global ...

Have you ever noticed a string of letters or numbers on your boarding pass that your fellow travelers seem to be missing? Along with your name and seat number, your boarding pass will often include ...

Flyers taking trips this summer may look at their boarding pass and just see their entry to an airplane. But your boarding pass contains a lot more than just your plane seat and gate number. It also ...

Boarding passes contain codes that communicate details about passengers and their itineraries to airport staff. Travelers should not throw away or post pictures of their boarding passes online due to ...

Add Yahoo as a preferred source to see more of our stories on Google. They're the letters no air traveler wants to see. If your boarding pass has the letters SSSS on it, you have been selected for ...

As the temperatures rise and the skies clear up, you might be looking forward to a summer vacation. But before flying to your destination, you'll have to go through screening at a TSA checkpoint.

As the temperatures rise and the skies clear up, you might be looking forward to a summer vacation. But before flying to your destination, you'll have to go through screening at a TSA checkpoint.