Flying with a psychiatric service dog

Service animals on planes

Under the Department of Transportation's rules, a service animal is a dog, regardless of breed or type, that is individually trained to do work or perform tasks for a person with a physical, sensory, psychiatric, intellectual or other mental disability. A psychiatric service dog that performs trained tasks fits this definition.

Emotional support animals, comfort animals, companionship animals and service animals in training are not service animals under these rules. Airlines may choose to carry them as pets under their pet policies, which may involve fees and carrier requirements.

Airline paperwork requirements

Airlines may require the DOT Service Animal Air Transportation Form, which covers your dog's health, behavior and training. Under 14 CFR 382.75, the form must be current and completed on or after the date you purchased your ticket. For flight segments scheduled to take 8 hours or more, airlines may also require the DOT Service Animal Relief Attestation Form, confirming your dog can either avoid relieving itself or do so in a sanitary way.

Airlines can't require other documentation beyond these forms, except to comply with animal transport rules of a federal agency, U.S. territory or foreign country. The Air Transportation Form was updated in September 2024, and airlines that require it must make it available on their websites in an accessible format.

A PSD letter can accompany the DOT form as supporting paperwork, but the DOT form is what airlines may require.

Flight timing and check-in

If you booked more than 48 hours before departure, an airline may require you to submit the forms up to 48 hours in advance. If you booked within 48 hours of departure, the airline can't require advance notice but may ask for the forms at the gate.

Airlines can't require you to check in physically at the airport just because you're traveling with a service animal, so online check-in should still be available to you.

At the airport and on board

Airline staff may ask whether your dog is required because of a disability and what task it's trained to perform. They may also look at physical indicators, like a harness or vest, and at the dog's behavior. Airlines may require that your dog be harnessed, leashed or otherwise tethered in the airport areas they control and on the aircraft.

On board, your dog generally rides in the space in front of your seat or, if small enough, on your lap when that can be done safely. It can't block an aisle or emergency exit. Airlines don't have to upgrade you to a different class of seating to fit a large dog, and other passengers' discomfort isn't a valid reason to refuse your dog.

• Airlines may limit you to two service animals
• Airlines generally can't charge a fee to transport a service animal
• You may be charged for damage your dog causes if other passengers would be charged for similar damage

When an airline can refuse a service dog

An airline may refuse to transport a service dog that poses a direct threat to the health or safety of others, causes a significant disruption in the cabin or at the gate, is too large or heavy to be accommodated in the cabin, or would violate the health rules of a U.S. territory or foreign country. It may also refuse if it requires the DOT forms and you don't provide them.

Behavior matters. The DOT gives examples of disqualifying behavior such as running around, unprovoked barking or snarling, and jumping on passengers. Practicing calm settling in busy places before you fly is one of the best ways to prepare.

Preparing for your flight

Check your airline's service animal page well before you fly, complete the DOT form after you buy your ticket, and keep digital and paper copies. Plan relief breaks around connections, and practice settling in a small space at home.

If a problem comes up, ask to speak with the airline's Complaints Resolution Official, who must be available at no cost in person or by phone during operating hours. You can also file a complaint with the DOT. If you'd like supporting documentation for travel planning, usaPsdletter.com offers an evaluation with a licensed clinician; a letter is issued only when clinically appropriate and doesn't guarantee acceptance by any airline.