I’m looking at flights, and Frontier is something like $180, United is $100 more, and American is $200 more. The thing is, I’ve never even heard of Frontier, so I don’t know if it’s worth saving $100.

I’ve flown internationally a lot, but since I’ve never been west of D.C., I’ve only flown domestically once, on US Airways to Boston, and I think maybe something else that was code sharing with Lufthansa for a domestic leg.

So, how do you rank airlines?