Southwest Pet Policy 2025: Rules, Fees, and In-Cabin Travel

Traveling with your pet can be both exciting and stressful, especially if you’re unsure about the airline’s rules. Southwest Airlines, known for its friendly service and transparent pricing, also has a well-structured pet policy that makes flying with your furry companion easier. Whether you’re taking a short domestic flight or planning a long vacation, understanding the Southwest Pet Policy helps ensure a smooth and comfortable journey for both you and your pet.

This guide will walk you through everything you need to know — from in-cabin travel rules and pet fees to booking your tickets through Travelpodium for better planning and peace of mind.

Overview of Southwest Pet Policy

Southwest Airlines allows small vaccinated domestic cats and dogs to travel in the aircraft cabin on most flights within the United States. The airline prioritises comfort and safety, ensuring that pets remain secure in approved carriers throughout the flight.

Here’s a breakdown of what the policy generally covers:

• Pets are permitted only on domestic flights.
• Each passenger can carry one pet carrier.
• The carrier must fit comfortably under the seat in front of you.
• No pets are allowed in the cargo hold or on international routes.

Southwest’s pet-friendly approach makes it one of the most preferred airlines for travellers who wish to bring their pets along. The focus remains on simplicity — minimal paperwork, affordable fees, and consistent guidelines across most U.S. routes.

In short, the Southwest Pet Policy is designed for pet parents who prefer a no-hassle travel experience without worrying about hidden costs or complex rules.

Pet Carrier Requirements

Ensuring your carrier meets Southwest’s standards is one of the most important steps before your flight. The airline is very specific about carrier dimensions, ventilation, and comfort.

Here’s what you need to keep in mind:

• The maximum carrier size should not exceed 18.5" (L) x 8.5" (H) x 13.5" (W).
• The pet must fit comfortably inside and be able to stand or turn around.
• Soft-sided carriers are recommended over hard-sided ones for flexibility.
• Only one pet carrier per passenger is allowed, with up to two small pets inside.

Before heading to the airport, make sure your pet gets familiar with the carrier. Allow them to spend some time inside it at home, so the environment feels safe and less stressful during the flight.

By following these carrier rules carefully, you’ll help ensure that your journey goes smoothly and that airline staff can easily accommodate your pet under the seat.

Also Read: Southwest Low Fare Calendar

Pet Fees and Reservation Process

Southwest Airlines charges a flat fee of $125 per one-way trip for each pet carrier. This fee must be paid during check-in or at the ticket counter before departure. The payment confirms your pet’s spot on the aircraft, as Southwest allows only a limited number of pets per flight.

Here’s a quick look at the reservation process in simple steps:

• Book your flight ticket through Travelpodium or directly on the Southwest website.
• Contact Southwest Airlines to reserve your pet’s spot — this must be done in advance.
• Pay the required pet fee at the airport before boarding.
• Arrive early since pet seating is on a first-come, first-served basis.

Unlike many airlines that charge hidden or variable rates, Southwest’s transparent pricing ensures you know exactly what to expect. Paying your pet fee in advance also helps avoid last-minute confusion or unavailability.

Overall, the reservation process is quick and efficient, especially when you book through Travelpodium, where you can plan flights, compare fares, and manage all your travel needs in one place.

In-Cabin Travel Rules for Pets

Once onboard, Southwest Airlines expects all pets to remain in their carrier throughout the flight. The carrier should be placed under the seat in front of you, and you’re not allowed to remove your pet at any point during the journey.

Some essential travel rules include:

• Pets must stay inside their carrier for the entire duration of the flight.
• The carrier counts as your one carry-on item.
• No oxygen masks are provided for pets, so pets must be healthy enough to travel.
• Your pet should be at least eight weeks old and properly vaccinated.

These guidelines ensure that pets travel comfortably and that other passengers remain undisturbed. Southwest’s staff is generally supportive and trained to assist pet owners in maintaining a calm environment.

Adhering to these rules not only ensures a stress-free journey but also helps in keeping the airline’s pet program accessible and reliable for everyone.

Flight Guidelines and Check-In Process

When traveling with your pet on Southwest Airlines, check-in procedures are slightly different from regular passengers. You cannot complete pet check-in online or at a kiosk. Instead, you’ll need to visit the airport ticket counter.

Here’s what to expect during check-in:

• Arrive at least 90 minutes before departure to allow enough time for verification.
• Bring your pet in an airline-approved carrier that meets Southwest’s size standards.
• Present your pet and carrier for a quick inspection by airline staff.
• Pay the $125 one-way pet fee if not already done online or by phone.

Once check-in is complete, the staff will give you a “pet carrier tag” to attach to your carrier. This tag confirms your pet’s reservation and clearance for boarding.

Booking through Travelpodium simplifies this process since you can manage both your flight and pet reservation together, ensuring a smooth travel experience. The platform helps travelers review available flights, compare timings, and make arrangements ahead of time to avoid last-minute stress.

Following these steps carefully makes traveling with your pet far easier, especially during busy travel seasons.

Pet Travel Tips for a Smooth Journey

Flying can be stressful for pets, but with a little preparation, you can help your companion stay calm and happy throughout the trip.

Here are some useful tips to ensure a comfortable journey:

• Pre-flight Exercise: Let your pet walk or play before heading to the airport to release energy.
• Avoid Feeding Right Before the Flight: Feed your pet at least 3–4 hours before departure to prevent nausea.
• Use a Familiar Blanket or Toy: Keeping something familiar inside the carrier provides comfort and reduces anxiety.
• Check Cabin Temperature: Ensure the cabin environment suits your pet’s needs. Southwest cabins are generally well-regulated.
• Keep Identification Handy: Attach a name tag with your contact details to the carrier.

While flying with your pet may seem challenging at first, these small steps can make a big difference. A well-prepared pet tends to remain relaxed, and that ensures a pleasant journey for everyone around.

Fly Comfortably with Your Pet on Southwest

Traveling with your pet doesn’t have to be complicated. The Southwest Pet Policy focuses on safety, comfort, and simplicity. With clear rules, reasonable fees, and dedicated support, the airline ensures that you and your pet can enjoy a seamless journey across the United States.

If you’re planning your next trip with your furry companion, make sure to book your flights through Travelpodium. It’s a trusted platform that allows you to compare fares, reserve seats, and add pet travel arrangements effortlessly in one place.

With proper planning and adherence to airline policies, your journey can be as enjoyable for your pet as it is for you. Southwest Airlines continues to stand out for its traveler-friendly approach, ensuring that both pets and their owners feel welcome from take-off to landing.