Frontier Airlines:Will My 18 × 15 × 10 Bag Fit?

Fits

Your bag meets the carry-on requirements, but it's too large to be a personal item. You'll need to store this in the overhead compartment during your flight.

Overhead Bin

AirlineMy BagLength24 in18 inWidth16 in15 inHeight10 in10 in

Weight35 lbs

Under Seat

AirlineMy BagLength18 in18 inWidth14 in15 inHeight8 in10 in