Southwest Airlines:Will My 17 × 10 × 9 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 in17 inWidth16 in10 inHeight10 in9 in

WeightNo limits

Under Seat

While there is no airline policy, your bag will not likely fit underneath the seat in front of you.