Southwest Airlines has built its own cargo facility at Denver International Airport so it can move more cargo for customers ...

Carry-on bags for passengers flying Frontier (ULCC) or Spirit (FLYY), for example, can cost up to $60, which is about $10 more than what Lugless charges for shipping a 25-pound bag from New York City ...

As airline baggage fees climb, a once-overlooked travel trick is gaining traction. Here's when it makes sense and how to do ...