Spirit Airlines is out of bankruptcy—with a plan to continue remaking itself to take on bigger rivals. The budget carrier filed for Chapter 11 in November to restructure looming debt after years ...

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.

Boarding passes may just seem like a piece of paper, but it turns out your tickets have more information about you than you realize.

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.