Q: I checked the TSA website and it didn't say anything about posters. I have one normal size rolled poster and one thats in a shipping tube. I'm flying Southwest. Will I be able to carry them on with me?
A: It should be allowed even though the Southwest Airlines baggage rules state "Southwest Airlines limits carryon bag dimensions to 10x16x24 inches." , as long as it fits in the overhead bins they usually let you carry it on.