Passengers flying to the United States encounter an unexpected four-letter code on their boarding passes that triggers mandatory additional security screening at airport gates worldwide.
The 'SSSS' designation—Secondary Security Screening Selection—subjects travellers to intensive pat-downs, explosive testing, and detailed questioning that can delay boarding significantly.
Be Prepared for Extra Scans
In a TikTok video posted by Chloe Jade Meltzer, who has visited over 156 countries, she shared her experience after noticing the dreaded 'SSSS' on her ticket while flying from Germany to New York.
@chloejadetravels Every traveler’s worst nightmare: SSSS OK, obviously I’m being a bit dramatic and I’m joking… But it’s definitely not super fun. Also the first few times that you get it it can feel a bit daunting or scary Especially if you are someone who is not a US citizen and you are about to fly into the United States So why does this happen? There are a lot of reasons why you might get SSSS! - passport is inconsistent, that means you may have two passports? - Flying on a one-way ticket - purchase ticket in cash - Your name matches someone’s name on a watchlist - Completely random So don’t freak out if you get it, and if you get it as often as I do, then we both might need to get ourselves, a homeland, security redress number 😆 sssss22025travelttraveltipsu#uscustoms
♬ original sound - chloe jade travels
'It usually happens when flying into the United States,' Meltzer explained on TikTok, admitting she often gets flagged.
Passengers with 'SSSS' are pulled aside at the gate, where staff conduct pat-downs, thorough bag searches, or test belongings for explosives. Travellers may also be questioned about their trip details.
Meltzer said the extra checks can feel 'daunting' and make flyers feel 'targeted,' especially since the screening happens right at boarding, adding to the delays.
What is SSSS All About?
The 'SSSS' designation on your boarding pass indicates that you've been randomly or selectively flagged for extra security checks by the Transportation Security Administration (TSA).
Passengers with 'SSSS' are pulled aside at the gate for enhanced screening, which can include pat-downs, detailed luggage inspections, and tests for traces of explosives.
Moreover, you may also face additional questions about your travel plans. This procedure is mainly used for flights entering the United States to ensure passenger safety. While the process can feel intimidating, it's a standard security measure used worldwide.
Basis for the 'SSSS' Designation
While 'SSSS' on a boarding pass can sometimes be assigned randomly, there are certain factors that can increase the likelihood of a traveller being selected for extra screening.
Certain factors, such as booking a one-way international ticket, paying in cash, making last-minute travel changes, or visiting high-risk countries, can raise security concerns for agencies.
Moreover, having an unusual travel pattern — such as frequent trips to multiple countries in a short period — may also trigger the designation. Additionally, passengers whose names appear similar to those on a watchlist might get flagged.
The US Transportation Security Administration (TSA) uses these criteria to identify passengers for additional checks to prevent security threats. Though frustrating for travellers, the goal is to maintain strict safety measures on incoming flights.
To-Dos When You Get an 'SSSS'
If you find 'SSSS' on your boarding pass, arrive at the airport early to allow extra time for additional screening. According to the TSA, secondary screening can include pat-downs, detailed luggage inspections, and explosive trace tests.
As a traveller, you need to be cooperative and answer any questions clearly about your travel plans. You also need to keep your documents handy and pack neatly to speed up checks. Travel experts recommend staying calm, as arguing can further delay your progress.
Unfortunately, you can't remove the 'SSSS' once it's assigned, but you can apply for redress through the DHS TRIP program if you're repeatedly flagged without reason.
Overall, while receiving 'SSSS' on your boarding pass can feel intrusive or stressful, it's ultimately part of broader efforts to maintain aviation security and protect travellers worldwide. Understanding what it means, why it happens, and how to handle it calmly can make the experience less intimidating.
