If you’re flying with a pet on Southwest Airlines, it’s important to follow their rules for pet carriers. Only small cats and dogs are allowed to travel in the cabin. Pets must stay inside a carrier for the entire flight, and the carrier must fit under the seat in front of you.

Southwest accepts both soft-sided and hard-sided carriers, but soft-sided ones are usually better because they can fit more easily in tight spaces. Your pet should be able to sit, stand, turn around, and lie down comfortably inside the carrier.

The carrier also needs to be secure, well-ventilated, and have a leak-proof bottom. A soft towel or pet pad inside can help keep your pet comfortable. Each passenger is allowed one carrier, and the pet counts as your carry-on item.

Make sure to check the official Southwest Airlines pet carrier dimensions before your flight. Using the right-sized carrier helps avoid problems at the airport and keeps your pet safe and relaxed during the trip. Always book early, as the number of pets allowed per flight is limited.