Passengers flying to the United States encounter an unexpected four-letter code on their boarding passes that triggers ...

Travel expert Chloe Jade Meltzer revealed the four letters on a boarding pass that can lead to extra TSA checks.

If you're planning to travel via plane, check your boarding passes for the letters "SSSS," because you might be pulled aside ...

If you're flying this summer, you might get pulled aside if you find this quartet of letters on your boarding pass, so plan extra time.

Passengers with "SSSS" on their boarding pass should allow an extra 15-45 minutes for security screening. As the temperatures rise and the skies clear up, you might be looking forward to a summer ...

If SSSS appears on your boarding pass, plan for an additional 15-45 minutes of TSA screening when you get to the airport.

If SSSS appears on your boarding pass, plan for an additional 15-45 minutes of TSA screening when you get to the airport. Here's why.

If SSSS appears on your boarding pass, plan for an additional 15-45 minutes of TSA screening when you get to the airport. Here's why.

If SSSS appears on your boarding pass, plan for an additional 15-45 minutes of TSA screening when you get to the airport. Here's why.

If SSSS appears on your boarding pass, plan for an additional 15-45 minutes of TSA screening when you get to the airport. Here's why.