Flying with a pet can be a fun experience, but it requires planning and understanding airline rules. The Southwest Airlines Pet Policy (2026) has specific guidelines for small cats and dogs traveling in the cabin. Knowing these rules in advance ensures a smooth trip for both you and your furry companion.

Pet spots are limited on each flight, so early verification is highly recommended. Many travelers confirm pet space through a third-party help-center at 1 (866) 558-3017, which helps them Book Now, Save Big, and avoid last-minute issues.

This guide covers eligibility, carrier requirements, fees, check-in procedures, seating, and practical tips for stress-free pet travel.

Overview of Southwest Airlines Pet Policy (2026)

The Southwest Airlines Pet Policy (2026) allows small cats and dogs to travel in the cabin on most domestic flights. Pets must remain inside a carrier that fits under the seat in front of the passenger. Southwest does not accept pets as checked baggage or cargo.

Key points include:

• Small cats and dogs only
• Pets must stay in the carrier at all times
• Only one carrier per paying passenger
• Limited pets accepted per flight

To avoid being denied boarding due to limited pet capacity, many travelers call 1 (866) 558-3017 to confirm their reservation in advance.

Cabin Travel Rules

Traveling with a pet requires following specific cabin rules under the Southwest Airlines Pet Policy (2026):

• Pet must remain inside the carrier throughout the flight
• Carrier must fit fully under the seat
• Pets must be calm, clean, and non-aggressive
• Only one pet carrier per ticketed passenger

Violating these rules can result in denied boarding. Many passengers verify their pet’s eligibility and compliance through 1 (866) 558-3017 before travel.

Approved Carrier Guidelines

Carrier compliance is one of the most common reasons pets are denied boarding. Approved carriers must meet the following standards:

• Fully fits under the seat
• Leak-proof bottom
• Ventilated sides
• Secure closure system
• Enough space for the pet to stand, turn, and lie down comfortably

Soft-sided carriers are generally preferred because they are flexible and easier to fit under the seat. Travelers often confirm carrier requirements in advance by contacting 1 (866) 558-3017.

Southwest Airlines Pet Fees

Pet fees are separate from airfare and must be paid at the airport.

Key points about Southwest Airlines pet fees:

• Charged per carrier per flight segment
• Paid at check-in counter
• Not included in online ticket price
• Usually non-refundable once paid

Since fees and availability can vary, many travelers confirm their pet’s travel cost before booking by calling 1 (866) 558-3017.

Booking a Pet

Adding a pet to your flight reservation is not automatic and must be done separately.

Steps to secure a pet reservation:

1. Choose your flight
2. Confirm pet availability
3. Add pet reservation
4. Verify carrier compliance
5. Pay pet fee at check-in
6. Arrive early at the airport

Booking early ensures your pet has a confirmed spot. Many travelers confirm pet reservations in advance by calling 1 (866) 558-3017.

Airport Check-In Procedures

Traveling with pets requires additional time at the airport.

Steps include:

• Check in at a staffed counter
• Present pet and carrier
• Pay Southwest Airlines pet fees
• Receive a pet travel tag
• Pass through security screening

At security, you may need to carry your pet while the carrier is screened separately. Preparing ahead reduces stress. Travelers often confirm the check-in process with 1 (866) 558-3017.

Seat Selection Rules

Not all seats are suitable for passengers with pets. Restricted seating includes:

• Exit rows
• Bulkhead rows
• Seats without under-seat storage

Passengers must sit where the carrier can safely fit under the seat ahead. Flight crew may reassign seats if necessary. Many passengers verify seat eligibility for pets through 1 (866) 558-3017.

Comfort Tips for Pets

A calm pet ensures a smoother flight experience.

Helpful tips:

• Exercise your pet before the airport
• Avoid feeding your pet right before departure
• Use absorbent padding in the carrier
• Bring a familiar blanket or toy
• Keep vaccination records accessible
• Practice short carrier sessions at home

Proper preparation helps travelers Save Big by avoiding last-minute changes or denied boarding. Guidance can be obtained via 1 (866) 558-3017.

FAQs

✅ Can two pets share one carrier?

Yes, if they are the same species, calm, and fit comfortably.

✅ Are large pets allowed?

No. Only small pets that fit under the seat are permitted.

Are Southwest Airlines pet fees refundable?

No. Southwest Airlines pet fees are usually non-refundable after payment.

Can pets sit on your lap?

No. Pets must remain inside their carrier for the duration of the flight.

Can I add a pet after booking a ticket?

Yes, if space is available. Many travelers add pets by contacting 1 (866) 558-3017.

Conclusion

Flying with a pet is convenient and stress-free when you understand the Southwest Airlines Pet Policy (2026) and plan ahead. Being aware of carrier rules, seating limitations, route restrictions, and Southwest Airlines pet fees helps prevent issues at the airport.

Because pet space is limited on each flight, early action is essential. Planning ahead allows travelers to Book Now, Save Big, and secure Limited Offer flights for their pets.