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Flying with your dog

Flying with your dog on United

Here's exactly how to fly with a trained service dog on United 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.

United at a glance

The two DOT forms every airline requires

Two official U.S. Department of Transportation forms do the heavy lifting. They are the same for every U.S. airline, United 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 United

  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 United. United asks for 48 hours of advance notice. Submit online at https://www.united.com/en/us/fly/travel/accessibility-and-assistance/service-animals.html.
  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 United'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 United

Not every dog on a plane is a service dog. A small dog can fly in the cabin as a pet, in a carrier under the seat. No DOT forms (those are service-animal documents). Here's United's current shape:

Fees and rules change without notice. United's own pet page is always the final word.

Common questions: United

How much advance notice does United need for a service dog?
United asks for 48 hours of advance notice. Requirements can change. Always confirm the current window with United before you book.
Where do I submit the DOT forms for United?
United accepts the forms through its accessibility portal: https://www.united.com/en/us/fly/travel/accessibility-and-assistance/service-animals.html. Bring printed copies to the airport as backup.
Does United 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 United ask whether my dog is really a service animal?
United 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 United without being a service animal?
Yes, as a pet in the cabin: a carrier under the seat (soft-sided up to 18" × 11" × 11" (hard-sided 17.5" × 12" × 9")), a $150 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 on United's pet page.
Want this handled for you? Paws on Board fills the DOT forms, tracks United's deadline, and lets you ask Copper anything about flying United, 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 United before you fly. Policy details verified August 14, 2026. See all airlines →