Frontier Airlines plans to charge a $25 fee for carry-on bags. But that's only if you pay in advance. If you decide to bring a carry-on at the gate, the fee is $100.
The fee only applies to bags placed in the overhead bin. Small bags that can fit under the seat will still be free.
The airline also plans on charging $2 for soda and coffee. That fee starts July 1.
Frontier says the new carry-on fee will take effect this summer, and it will announce a specific date later.