Set alerts for tools like Points Path that check inventory across airlines, making it easier to spot available first-class seats. If you're able to be flexible with your travel plans, you'll ...

Add Yahoo as a preferred source to see more of our stories on Google. 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.

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" ...