Because your in-cabin cat counts as a carry-on, you might have to pay to check your roll-aboard bag. Pets that fly as cargo often cost more — for example, $200 each way on American Airlines when cats are checked as luggage.
How much is a pet fee for Southwest?
When flying with a pet on a Southwest flight, passengers must pay a $95 pet fare fee per carrier, each way. This additional expense is worth considering as you plan out your trip costs. This fee is refundable if you decide not to travel with your pet, you decide to cancel the flight or your flight is canceled.