— Airline Guide
Southwest offers in-cabin pet travel on most domestic flights. This guide covers carrier requirements, fees, restrictions, and tips for a smoother travel experience
Flying With Your Pet On Southwest Airlines
Southwest at a Glance
Pet Fee
$125 Each Way
Carrier Size
A soft-sided kennel, dimensions of 18” x 11” x 11”. Fits most aircraft types.
Pets Allowed
Dogs and cats only. Limits to the number of pets on each flight.
Reservation Required
Reservations are required. Please call Southwest at 1 (800) 435-9792.
— Carrier Recommendations
Recommended Pet Carriers
All carriers below meet Southwest's soft-sided carrier requirements of 18" x 11" x 11".
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— Quick Tips
Southwest Quick Tips
✓ Reserve your pet's spot immediately after booking
✓ Arrive 30 minutes earlier than normal
✓ Bring a collapsible water bowl
✓ Use a soft-sided carrier whenever possible
✓ Keep vaccination records available
✓Southwest counts your pet as your carry-on bag. That means you are then allowed only a personal item ( purse or backpack) in addition to your pet.
— Related Resources
Related Resources
— From the author
Get the complete guide
Flying With Your Pet: The Complete Guide to Safe, Stress-Free Air Travel walks you through every stage of the journey — choosing the right carrier, understanding airline policies, navigating airport security, and settling in for the flight.
Every tip is grounded in real research and real-world travel with my Labradoodle, Jameson.