Southwest Airlines allows small vaccinated domestic cats and dogs to travel with you in-cabin under the seat in front of you. All pets must be carried in an appropriate carrier.

Pets will be accepted on a first-come, first-served basis until capacity is reached. Six (6) pets are allowed per flight with a limit of one pet carrier per paying Customer traveling on the same flight. However, from time to time, circumstances may allow for more (or fewer) than six (6) pet carriers per scheduled flight.

Documentation requirements to travel with an emotional support animal

A Customer seeking to travel with an emotional support animal must provide to a Southwest Airlines Employee current documentation (not more than one year old on the date of travel) on letterhead from a licensed mental health professional or medical doctor who is treating the Customer’s mental health-related disability. The letter must state all four items below:

  1. The Passenger has a mental or emotional disability recognized in the Diagnostic and Statistical Manual of Mental Disorders
  2. The Passenger needs the emotional support animal as an accommodation for air travel and/or for activity at the Passenger’s destination
  3. The individual providing the assessment is a licensed mental health professional or medical doctor, and the Passenger is under his or her professional care AND
  4. The date and type of mental health professional’s or medical doctor’s license and the state or other jurisdiction in which it was issued

Pet Travel Restrictions

  • Pets are not allowed to travel in-cabin on international flights or any itinerary that includes an international flight.
  • Cats and dogs must be at least eight (8) weeks old for travel.
  • The animals must be harmless, not disruptive, odorless, and require no attention during flight.
  • Southwest Airlines assumes no liability for the health or wellbeing of carryon pets.
  • Southwest Airlines will not accept pet remains in the cabin of the aircraft.

Quickly and easily see if you qualify for an emotional support animal letter. We offer 100% free qulification test.