Service Dogs on Southwest Airlines: 2026 Policy Guide

Southwest Airlines Service Dog Policy

Southwest Airlines accommodates trained service dogs on all flights, following the DOT's ACAA regulations. Southwest's unique open seating model and customer service reputation make it a popular choice for service dog handlers, though some aspects require specific planning.

Pre-Flight Requirements

Southwest requires the DOT Service Animal Air Transportation Form submitted at least 48 hours before departure. The form is available on Southwest's website and can be submitted online through the Special Assistance section of your reservation, by email, or by fax. When booking, add a service dog to your reservation through the Special Assistance section.

The Southwest Open Seating Advantage

Preboarding

This is the biggest advantage of flying Southwest with a service dog. Southwest offers preboarding for passengers with disabilities, including service dog handlers. Preboarding means you board before all other passengers, even before A-group boarding. With preboarding, you get first choice of every seat on the plane. Best options include the bulkhead row with maximum floor space which is the best choice for large dogs, window seats where the dog can tuck against the fuselage wall, and you should avoid exit rows as regulations may prevent you from sitting there with a service dog.

How to Request Preboarding

At the gate, inform the gate agent that you have a disability and would like to preboard with your service dog. You do not need to describe your disability in detail. The agent should offer you a preboarding card.

In the Cabin

Standard rules apply: dog remains on the floor at your feet, must be on leash or harness, cannot block the aisle or exits, should not sit on a seat, and must be calm and well-behaved. Southwest operates exclusively Boeing 737 aircraft with standard seat pitch of 31 to 33 inches. For very large service dogs, the bulkhead row is essentially the only comfortable option. Always take advantage of preboarding to secure this row.

Practical Tips

• Always preboard as this is your most important tool for a comfortable flight
• Bring a mat since the cabin floor is hard and cold
• Use the pet relief area before boarding at Southwest hub airports including MDW, DAL, BWI, DEN, HOU, LAS, OAK, and PHX
• Carry water and a bowl since flight attendants can fill your bowl
• Skip the exit row even if empty during preboarding

Connections and Layovers

Southwest operates a point-to-point network with connections often at hub airports. During layovers, use the pet relief area, give your dog water and a brief walk, and preboard again for your connecting flight.

Resolving Issues

If you encounter a problem, request a CRO (Complaint Resolution Official). Southwest must have one available at every station. The CRO has training and authority to resolve disability-related issues. If unresolved, file a complaint with Southwest's Customer Relations and the DOT. For a complete guide, see our denied access response guide. For a comparison of all major airlines, check our complete airlines guide.

Frequently Asked Questions