As you can see from checking out our newly revised airline fee chart, a number of airlines have snuck in some higher fees.

Pet in cabin fees have especially skyrocketed. Continental now charges $250 RT (up from $190); Delta gouges a hefty $300 RT (a $100 increase); but United wins the cake, raising its fee from $200 up to $350 RT.

Unaccompanied minor fees have also gone up. Frontier now charges $50 per segment (so $200 RT on a connecting flight with one connection each direction), up from $40; and United now charges an industry leading $150 each way (connecting or nonstop), up from $99 each way.