Spirit Airlines Emotional Support Animal Policy

Spirit Airlines ESA Policy — Since the 2021 DOT rule, Spirit Airlines no longer accepts emotional support animals — only trained service dogs fly free

Spirit Airlines no longer accepts emotional support animals. Since the U.S. Department of Transportation’s 2021 rule, Spirit Airlines treats an emotional support animal as a pet: a small dog or cat travels in an approved pet carrier under the seat for a fee under the Spirit Airlines pet policy, with no free cabin access. Only trained service dogs — dogs individually trained to perform tasks for a person with a disability — fly free in the cabin, and Spirit requires the DOT service animal air transportation form.

Does Spirit Airlines accept emotional support animals?

No. Spirit Airlines does not accept an emotional support animal as a service animal and gives it no free cabin access. Spirit followed the 2021 DOT rule and stopped recognizing emotional support animals, so a support animal that is not a trained service dog rides under the Spirit Airlines pet policy. If your animal is an emotional support animal rather than a trained service dog, plan around the pet fees and carrier rules.

Why Spirit changed its ESA policy

The Department of Transportation revised the Air Carrier Access Act and, effective in 2021, defined a service animal as a dog trained to perform tasks for a disability, letting airlines stop treating emotional support animals as service animals. Spirit Airlines updated its policy accordingly. The change came from federal rulemaking and matches Delta, Southwest, American, United, and the rest of the industry — emotional support animals lost their special status everywhere at once.

What Spirit accepts now: trained service dogs

Spirit’s cabin is open free of charge to trained service dogs. Under the DOT definition, a service dog is a dog individually trained to perform tasks for a disability — guide dogs, mobility dogs, medical-alert dogs, and psychiatric service dogs all qualify. Spirit Airlines accepts these trained service dogs and trained service animals in the cabin at no charge when the dog is leashed and under control and the form is filed. Emotional support animals do not meet the individually-trained standard.

Psychiatric service dogs and a mental disability

A psychiatric service dog is the path many former ESA travelers take on Spirit. A psychiatric service dog is individually trained to perform tasks for a qualified individual with a mental disability — interrupting a panic attack, providing deep pressure, guiding a disoriented handler. Because it is a trained service dog and not an emotional support animal, Spirit accepts a psychiatric service dog in the cabin free of charge under the same rules as any other service dog, provided the DOT form is filed ahead of the flight.

Spirit's service animal air transportation form

To fly a service dog on Spirit, submit the DOT service animal air transportation form — the animal air transportation form that confirms the dog is individually trained to perform tasks and is in good health and behavior; a relief attestation is added for long flights. Spirit asks that the form be filed before travel. This DOT service animal air transportation form replaced the ESA-letter process — Spirit does not accept an emotional support animal letter for free cabin travel.

Flying an ESA as a pet on Spirit

If your animal is an emotional support animal, you can fly it on Spirit as a pet. A small dog or cat that fits in an approved pet carrier under the seat travels in the cabin for Spirit’s pet fees, subject to the Spirit Airlines pet policy limits on pets per flight. Larger animals are not accepted in the cabin. This is the practical route for support animals on Spirit now: book the pet fees and meet the carrier rules.

Emotional support animal Trained service dog
Cabin access on Spirit As a paid pet only, in a carrier Free, at the traveler’s feet
What it must be An animal that provides comfort A dog individually trained to perform tasks
Fee Spirit Airlines pet fees No charge
Paperwork Spirit Airlines pet policy DOT service animal air transportation form

Spirit's rules for service dogs in the cabin

Spirit Airlines accepts a trained service dog when it is leashed or harnessed and under the handler’s control and fits within the traveler’s foot space at the seat. Spirit can refuse an animal that is out of control or poses a direct threat to other passengers. File the form before travel, arrive early, and be ready to state that the dog is required for a disability and what task it is individually trained to perform. Two service dogs per traveler is the usual maximum.

Bottom line on Spirit's ESA policy

Spirit Airlines’ emotional support animal policy is straightforward: ESAs are pets and travel only under the Spirit Airlines pet policy, while trained service dogs fly free with the DOT service animal air transportation form. The 2021 DOT rule drove the change across Spirit and every major carrier. Decide whether your animal is a trained service dog or an emotional support animal before you book, and follow the matching policy for your flight.

The Spirit Airlines pet policy in detail

Because Spirit Airlines treats an emotional support animal as a pet, the Spirit Airlines pet policy governs travelers with a support animal that is not a trained service dog. Spirit Airlines allows a small dog or cat in an approved pet carrier under the seat for pet fees each way, with only one pet per carrier and a cap on pets per flight. A regular pet must stay in the carrier at the seat for the whole flight. Larger animals are not accepted in the cabin, so under the Spirit Airlines pet policy support animals ride only as small carrier pets.

Pet fees, carriers, and seats on Spirit

Spirit’s pet fees apply to each animal on each segment, separate from bag fees. The pet carrier must be ventilated, leak-proof, and small enough to fit under the seat; the pet rides in the foot space, not on the seat or an exit-row seat. A trained service dog, by contrast, pays no fee and does not ride in a carrier — it sits at the traveler’s feet. Whether traveling with a pet or a service dog, choose a seat with foot space and add the animal to the reservation before the flight.

Spirit's service animal air transportation form

Spirit requires the DOT service animal air transportation form — the animal air transportation form confirming the dog is individually trained to perform tasks and is in good health and behavior. File the completed form before travel and bring a copy to the airport. Because this DOT service animal air transportation form replaced the ESA-letter process, Spirit does not accept an emotional support animal letter for free cabin travel; only the completed form gets a trained service dog into the cabin at no charge.

When Spirit can deny a service animal

Spirit Airlines can refuse an animal that is out of control or poses a direct threat to passengers. A trained service dog must sit quietly and stay under control for the whole flight; a dog that shows disruptive or aggressive behavior can be denied boarding even with the form on file. Spirit limits each traveler to two service dogs, and both must behave. A pet that does not meet the Spirit Airlines pet policy carrier rules can also be refused. The airline applies the same safety standard to service dogs and regular pets.

Psychiatric service dogs and a qualified individual on Spirit

Spirit accepts psychiatric service dogs. A psychiatric service dog is individually trained to perform tasks for a qualified individual with a mental disability, so it flies free like any service dog, not as an emotional support animal. Spirit treats a psychiatric service dog the same as a guide dog or a mobility dog: the DOT form on file, the dog at the traveler’s feet, and no pet fees. The distinction from an emotional support animal is always that the psychiatric service dog performs trained tasks for the person’s disability.

International travel and Spirit's animal rules

On international routes, the traveler is responsible for meeting the destination country’s entry rules. A pet or a trained service dog on an international Spirit flight may need extra vaccination records and a health certificate beyond the form, and each country sets its own requirements. For domestic flights a trained service dog flies free with the DOT service animal air transportation form and a pet travels under the Spirit Airlines pet policy; for international travel, verify the destination’s rules well before departure.

The Spirit Airlines ESA policy and required forms

The Spirit Airlines emotional support animal policy — the Spirit Airlines ESA policy — routes emotional support animals to the pet track, so Spirit Airlines charges a pet fee for them while trained service dogs fly free. To fly a service dog, submit the required forms, the DOT service animal air transportation form, giving advance notice before the flight. Spirit does not require a psychiatric service dog letter or an ESA letter for service animals; a licensed mental health professional’s letter matters only for housing, not for these Spirit flights. Trained service animals — service dogs — travel free with the required forms.

What Spirit accepts as pets vs. service animals

As pets, Spirit accepts small domestic dogs, small domesticated animals, and small household birds in a carrier under the Spirit Airlines pet policy, subject to weight limits and breed restrictions on some routes. As service animals, Spirit accepts only trained service dogs — a service animal must be a dog individually trained to perform tasks. Spirit will not treat emotional support animals as service animals. So a service animal rides free while a pet pays, and the same service animal must ride in a sanitary manner at the traveler’s feet, not in a carrier.

Advance notice, the special assistance desk, and behavior

Spirit asks for advance notice for a service dog and directs travelers to its special assistance desk for special accommodations. Give advance notice, submit the required forms, and contact the special assistance desk so the service animal is on the reservation. On board, a service dog must behave in a sanitary manner and stay under control; Spirit can remove a service animal that is disruptive. Psychiatric service animals — psychiatric service dogs — follow the same rules and give the same advance notice as any other trained service dog.

International routes and partner airlines on Spirit

On international routes to destinations like the Virgin Islands, and where a partner airline carries part of the trip, the traveler must meet each country’s and each partner airline’s rules. A service dog or a pet may need extra vaccination records and a health certificate for international travel, and the partner airline’s pet policy may differ from Spirit’s. Confirm both Spirit’s and the partner airline’s requirements before booking so the service animals or pets on the itinerary meet every rule for the flights.

Summary — what to remember

Common questions about spirit airlines emotional support animal policy

Does Spirit Airlines accept emotional support animals?

No. Since the 2021 DOT rule, Spirit treats emotional support animals as pets, not service animals. An ESA travels only under the Spirit Airlines pet policy in an approved carrier for a fee.

What animals fly free on Spirit now?

Only trained service dogs — dogs individually trained to perform tasks for a disability, including guide, mobility, medical-alert, and psychiatric service dogs — with the DOT service animal air transportation form.

Can a psychiatric service dog fly on Spirit?

Yes. A psychiatric service dog is individually trained to perform tasks for a mental disability, so Spirit accepts it in the cabin free of charge with the DOT form, under the same rules as any other service dog.

Can I fly my ESA on Spirit as a pet?

Yes. A small dog or cat that fits an approved under-seat carrier can travel in the cabin for Spirit’s pet fees, subject to the Spirit Airlines pet policy limit on pets per flight.

What form does Spirit require for a service dog?

The DOT service animal air transportation form confirming the dog is individually trained to perform tasks and is in good health and behavior, plus a relief attestation on long flights. File it before travel.

Does an ESA letter work on Spirit?

No. An ESA letter still applies to housing under the Fair Housing Act but does nothing for Spirit air travel. Only a trained service dog with the DOT form gets free cabin access.

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Written by USAR Editorial Team · Last reviewed:

USAR follows a strict editorial process: every guide is fact-checked against primary federal statutes and reviewed quarterly. We have no financial relationships with letter providers, training schools, or registries.