Southwest Airlines is known for its pet policies. The airline allows both cats and dogs to travel in the cabin, provided they are kept on a leash under 8 feet long and are seated in a carrier. Pets must be accompanied by a person aged 18 years or older, and you are responsible for caring for them for the duration of the flight. Before booking your flight, you will need to fill out the airline's booking form and include your pet’s information (name, breed, etc.). If you would like to request an aisle seat for your pet, you have to know about Southwest Airlines' pet policy for information related to this and you should visit us for information related to this.