Traveling with pets can be both exciting and overwhelming, especially when you’re unsure of the airline’s rules. If you're planning to fly with your furry friend, understanding the Southwest Airlines pet policy is essential. Whether you're bringing a small dog, cat, or wondering about traveling with an emotional support animal, this guide breaks it all down for you—costs, carrier sizes, booking steps, and more.
What is Southwest Airlines' Pet Policy?
Southwest Airlines welcomes small domestic cats and dogs to travel in-cabin under certain conditions. According to the Southwest Airlines pet travel policy, pets must remain in their carrier throughout the flight and be stowed under the seat in front of you.
Only small cats and dogs are allowed onboard. If you're wondering about the Southwest large dog policy, unfortunately, larger pets cannot fly in-cabin or as cargo—Southwest does not offer a checked pet service.
How Much Does Southwest Airlines Charge for Pets?
The Southwest pet fee is straightforward: $125 each way per pet carrier. This fee is nonrefundable, even if you cancel your trip. The airline allows you to pay this fee when booking your reservation or at the airport ticket counter.
If you're researching the Southwest Airlines pet policy cost ahead of time, note that the fee applies per carrier, not per pet. However, two pets of the same species may share a single carrier if they fit comfortably.
What Types of Pets Are Allowed on Southwest Airlines?
Only small domestic cats and dogs are allowed under the current Southwest Airlines pet policy 2025. Exotic animals, birds, rodents, and reptiles are not accepted. Pets must be at least 8 weeks old and weaned before traveling.
Can My Pet Fly in the Cabin with Me on Southwest Airlines?
Yes, your pet can absolutely fly with you in the cabin—but only if they meet the size and behavior requirements. According to the Southwest Airlines pet policy, pets must remain in an approved carrier under the seat in front of you for the duration of the flight.
Unlike some airlines, Southwest does not allow pets to occupy a seat or travel in cargo. It’s a cabin-only airline when it comes to pets.
How Do I Book a Flight for My Pet on Southwest Airlines?
To book a pet on a Southwest flight, call customer service at 1-800-I-FLY-SWA or add your pet when booking your own ticket online. You can also visit the ticket counter on your travel day to add a pet, but it’s subject to availability—each flight has limited space for pets.
Keep in mind that Southwest allows a limited number of pets per flight, so it’s a good idea to reserve your spot early.
What Size Pet Carrier is Allowed on Southwest Airlines?
The Southwest Airlines pet policy allows carriers with the maximum dimensions of 18.5" long x 13.5" wide x 8.5" high. Your carrier must be soft-sided or hard-sided and ventilated. It should comfortably fit under the seat in front of you.
Make sure your pet can move around easily inside the carrier, or they may be denied boarding.
Are There Any Restrictions on the Number of Pets Allowed per Flight on Southwest Airlines?
Yes. According to the Southwest Airlines pet travel policy, only six pet carriers are allowed per flight, and only one carrier per paying customer is permitted. While two pets of the same species can share a carrier, they still count as one in the carrier limit.
This means booking early is important if you’re flying during peak travel times.
Can I Bring My Pet on a Southwest Airlines International Flight?
Unfortunately, no. The Southwest Airlines pet policy 2025 does not allow pets on international flights. Pets can only travel on domestic flights within the United States, including Puerto Rico.
So if you’re planning a tropical getaway or international trip, you’ll need to explore other airline options for pet travel.
Conclusion
Flying with your pet doesn’t have to be a headache. With a little preparation and understanding of the Southwest Airlines pet policy, you and your furry companion can enjoy a safe and stress-free journey. Just remember the key points:
Only small cats and dogs are allowed
$125 pet fee each way
Pet must stay in an approved carrier
No pets on international flights
No emotional support animal exemptions
Whether you're a frequent flyer or taking your pet on their first plane ride, knowing the rules will make the experience smoother for everyone.