Premium economy often costs around 50% more than economy, although this varies widely and varies by sub-class.

Airline cabin classes like premium economy, business, and first class can be confusing and vary significantly between domestic and international flights. On most U.S. domestic flights, "first class" ...

Don't get tricked next time you pay for an airline upgrade, because you might not be getting what you expect. Here's what I mean. I'm going to show you a few pictures and I want you to pick the one ...