Almost all U.S. airlines have similar rules about carry-on bag allowances. Here's why they're important to follow.

Between the REAL ID flight requirements, Southwest’s infamous new baggage fees, and flight delays from the government ...

I was flying from Denver to Orlando on Frontier Airlines. I prepaid for my checked luggage. I only had one carry-on bag and a small personal item, both of which were within the size limits. But when I ...