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Flying with your dog

Flying with your dog on Spirit

Here's exactly how to fly with a trained service dog on Spirit Airlines— the forms, the timing, where to submit, and what happens at the gate. It's the same process Danny and his service dog Copper have used on every flight, written plainly so you're not guessing at the counter.

Spirit at a glance

The two DOT forms every airline requires

Two official U.S. Department of Transportation forms do the heavy lifting — the same ones for every U.S. airline, Spirit included:

These are not a certification — no U.S. registry certifies service animals, and none is required by law. The forms simply document that your dog is trained for a specific task and behaves appropriately. Paws on Board gives you editable versions with every field pre-explained.

Step by step: flying with your dog on Spirit

  1. Confirm the basics. Your dog is trained to do a specific task related to a disability and behaves calmly in public. Make sure their microchip and rabies vaccination are current — you'll reference them on the forms. (There is no government registry or official certification for service animals in the U.S., and none is required by law.)
  2. Fill out the two DOT forms. The DOT Service Animal Air Transportation Form covers your dog's health, vaccination, training, and behavior — every major U.S. airline requires it. The DOT Relief Attestation is only required for flights of 8 hours or more. Paws on Board pre-explains every field.
  3. Submit to Spirit. Spirit asks for 48 hours of advance notice. Submit online at https://www.spirit.com. Trained service dogs accepted at no charge. ESAs not recognized. Contact Spirit directly to confirm current submission method.
  4. At the gate. Under the Air Carrier Access Act, staff may ask only two things: (1) is the dog required for a disability, and (2) what task is it trained to perform. They can't ask about your diagnosis or demand medical paperwork. Bring copies of your forms as backup.

Copper's tip

Submit Spirit's forms as early as you can, then bring printed copies to the airport anyway — a friendly agent at the counter beats a portal glitch on travel day. And keep it calm and matter-of-fact at the gate — a well-behaved dog at your feet answers most questions before anyone asks.

Flying with a small dog (as a pet) on Spirit

Small dogs can also fly in the cabin as pets on Spirit: a carrier under the seat, a pet fee each way, and a capped number of pet spots per flight, so add the pet to your booking early. No DOT forms — those are service-animal documents. Check Spirit's own pet page for current fees and carrier dimensions.

Common questions — Spirit

How much advance notice does Spirit need for a service dog?
Spirit: 48 hours. Trained service dogs accepted at no charge. ESAs not recognized. Contact Spirit directly to confirm current submission method. Requirements can change — always confirm the current window with Spirit before you book.
Where do I submit the DOT forms for Spirit?
Spirit accepts the forms through its accessibility portal: https://www.spirit.com. Bring printed copies to the airport as backup.
Does Spirit charge a pet fee for a service dog?
No. A trained service animal is not a pet under the Air Carrier Access Act, so there's no pet fee and no carrier requirement — your dog rides in the cabin at your feet. This is not a certification; what matters is that your dog is task-trained and well-behaved.
Can Spirit ask whether my dog is really a service animal?
Spirit staff may ask only two questions under the ACAA: is the dog required because of a disability, and what task is it trained to perform. They may not ask about your specific disability or require medical documentation.
Can a small dog fly on Spirit without being a service animal?
Yes — as a pet in the cabin: a carrier under the seat, a pet fee each way, and a limited number of pet spots per flight, so add the pet to your booking early. No DOT forms — those are service-animal documents. Confirm current fees and carrier sizes on Spirit's pet page.
Want this handled for you? Paws on Board fills the DOT forms, tracks Spirit's deadline, and lets you ask Copper anything about flying Spirit — for free.
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Not legal advice, and not a certification of anything. Airline requirements change — always verify the current rules directly with Spirit before you fly. Policy details last updated July 26, 2026. See all airlines →