Dogs and cats can fly in the cabin with you. Cabin pet fee: $125 each way; $35 between Hawaiian islands.
Checked against Southwest Airlines' official pages on . Airlines change these rules often, so confirm with Southwest Airlines before you book.
- Cabin pet fee
- $125each way; $35 between Hawaiian islands
- Animals allowed
- Dogs and cats
- Max carrier size
- 18 x 10.5 x 10 inany carrier
- Weight limit
- No set limitPet must fit comfortably in the carrier
- Minimum age
- 8 weeks
- Pets per passenger
- 1
- Counts toward bag allowance
- Yes
- Pets in hold or cargo
- No
Southwest Airlines pet carrier size
- 18 x 10.5 x 10 in (any carrier)
Maximum carrier dimensions 18" L x 10.5" W x 10" H (not split by hard/soft; soft-sided recommended because under-seat space varies, aisle seats may have less room). Southwest's own branded pet carrier is 15" L x 10" W x 10" H. Carrier must be designed as a pet carrier, leak-proof and well ventilated.
Southwest Airlines pet fee in detail
One-way carryon pet charge, $125 per pet carrier for U.S. Mainland travel; $35 per pet carrier between Hawaiian Islands. Charged per carrier, not per pet. Paid at the ticket counter; refundable if the reservation is cancelled.
Where you can't fly with a pet
Domestic flights only. Not allowed on international flights or any itinerary that includes an international flight. Accepted on flights between Hawaiian Islands, but not to/from Hawaii from the mainland. Puerto Rico may have specific requirements. Pets may not be in an exit row or the first (bulkhead) row. Unaccompanied minors cannot travel with a pet.
How many pets you can bring
One carrier per ticketed customer; each carrier may hold up to two small cats or dogs of the same species.
How to book a pet on Southwest Airlines
Space is limited; Southwest recommends reserving in advance by calling. Pet Fare is paid at the ticket counter.
Southwest Airlines pet cargo and checked pets
Southwest does not transport pets in the cargo compartment.
Service and emotional support animals
Not verified: the official service animal help article returned a 404 during research.
Questions people ask
Can I bring my dog or cat in the cabin on Southwest Airlines?
Yes. Dogs and cats are accepted in the cabin in a carrier that fits under the seat in front of you, subject to space on the flight.
How much is the Southwest Airlines pet fee?
The cabin pet fee is $125 (each way; $35 between Hawaiian islands).
What size pet carrier does Southwest Airlines allow?
Up to 18 x 10.5 x 10 in (any carrier). Maximum carrier dimensions 18" L x 10.5" W x 10" H (not split by hard/soft; soft-sided recommended because under-seat space varies, aisle seats may have less room). Southwest's own branded pet carrier is 15" L x 10" W x 10" H. Carrier must be designed as a pet carrier, leak-proof and well ventilated.
Can pets fly in cargo on Southwest Airlines?
Southwest does not transport pets in the cargo compartment.