The four 'dreaded' letters on airline boarding passes that travelers say they never want to see

The mystery of the 'SSSS' code

For frequent flyers, there's nothing quite as anxiety-inducing as seeing the dreaded 'SSSS' code on your boarding pass. This seemingly innocuous string of letters can lead to a lengthy and invasive security screening process, often resulting in missed flights and ruined travel plans.

The 'SSSS' code, which stands for Secondary Security Screening Selection, is used by the Transportation Security Administration (TSA) to flag passengers who are considered to be a potential security risk. While the TSA has never officially disclosed the criteria used to select passengers for SSSS, it is believed that the agency considers factors such as travel history, name similarities to known or suspected terrorists, and suspicious behavior.

What to expect if you're selected for SSSS

If you're unlucky enough to be selected for SSSS, you can expect to undergo a more thorough security screening than usual. This may include:

• A pat-down search
• A full-body scan
• A search of your luggage
• An interview with a TSA agent

The SSSS screening process can be time-consuming and invasive, but it is important to cooperate with the TSA agents. Refusing to cooperate may result in being denied boarding.

How to avoid being selected for SSSS

There is no surefire way to avoid being selected for SSSS, but there are a few things you can do to reduce your chances:

• Use your full name when booking your flight.
• Avoid using nicknames or aliases.
• Check your name against the TSA's no-fly list before you travel.
• Arrive at the airport early to allow for extra time for screening.
• Be polite and cooperative with the TSA agents.

What to do if you're selected for SSSS

If you're selected for SSSS, don't panic. Here are a few tips to help you get through the process as quickly and smoothly as possible:

• Be patient and cooperative.
• Answer all questions honestly and directly.
• Allow the TSA agents to search your luggage and body.
• If you have any questions, ask the TSA agents for clarification.

Being selected for SSSS can be a hassle, but it's important to remember that the TSA's goal is to keep passengers safe. By cooperating with the screening process, you can help to ensure a safe and secure flight for everyone.