Delta service animal policy: service dogs, ESAs and the DOT form

Service dogs on Delta: what Delta requires

Delta's contract of carriage (last modified August 18, 2026) says "Service Animals are defined as only dogs, regardless of breed, specifically trained to assist a Person with a Disability." Its service animal page adds the practical rules:

• Forms: "The DOT requires the Service Animal Air Travel form for all service animals. Flights that are 8 hours or more also require the Relief Attestation form."
• Number: "A maximum of 2 service animals are permitted to travel", with forms for each.
• Age and health: "All traveling service animals must be fully vaccinated and at least 4 months old." Delta also explains that a first rabies shot given at 3 months needs a 30-day wait before travel.
• Fees: none for the service dog, its kennel or its essential items, and they do not count against your carry-on.
• Behavior: Delta may refuse a dog for "disruptive or aggressive behavior", listing growling, biting, lunging, jumping on others, relieving itself outside an animal relief area, barking excessively (except in response to a handler's needs) and eating off tray tables. That applies in Delta Sky Club lounges too.

Breed: Delta has lifted its old ban on pit bull type dogs for service dogs that meet the documentation and behavior rules, according to its travel agent site, which adds that pit bull type dogs still cannot travel as in-cabin pets.

Registries do not help. Delta's own FAQ asks what happens if your dog is a member of the National Service Animal Registry and answers: "Our policies and procedures still apply to customers with NSAR memberships." No registry, ours included, replaces the DOT form. A voluntary record is useful for your emergency contact, not for Delta.

How to add a service dog to a Delta booking

1. Book your ticket as usual.
2. Fill out the DOT form (and the relief form if a flight is 8 hours or more) after you buy the ticket.
3. Use Delta's "Submit Completed Forms" option on its service animal page and tick the "Trained Service Animal" box in Step 4. Delta asks for the forms and a service request "at least 48 hours before departure".
4. Check in as usual in the app or at the airport. Delta says "You're not required to visit the check-in counter for your service animal." Pre-boarding is optional.

Booking inside 48 hours? Delta's contract lists a service animal in the cabin among services that need advance notice "unless the ticket is purchased less than 48 hours prior to departure", so bring the completed form to the airport. The DOT rule requires airlines to accept it at the gate in that case.

Submitting the DOT form to Delta

Delta hosts its own copy of the relief attestation form, and its air travel form link opens a "Service Animal Request" page that runs as an app. If that page gives you trouble, you can download the same DOT form from the DOT and fill it out by hand; see how to fill out the DOT service animal form. Delta also says: "If you need help with the forms, please bring printed copies on your day of travel to the airport, where an agent will assist you."

How long an approval lasts: Delta's current pages do not say. An older arrangement where approval lasted a year appears only in a 2018 Delta PDF that its current page no longer links, so plan on sending the form for each trip (the DOT rule lets an airline ask once per trip, and a round trip is one trip).

Psychiatric service dogs on Delta

A psychiatric service dog is a service dog on Delta, with the same form and the same 48-hour timing. Delta's contract defines service animals as dogs trained to assist a person with a disability, with no separate psychiatric category, and the DOT rule says "Psychiatric service animals will be subject to the same regulations as other service animals." Airlines may no longer require a letter from a mental health professional.

The dog does need to be trained to perform a task, such as interrupting a panic attack. A dog that helps just by being there is an emotional support animal. See psychiatric service dogs.

Emotional support animals on Delta: flying as a pet

Delta's page is direct: "Emotional support animals are not recognized as service animals. Please review the Pet Travel Guidelines for how to travel with your pet." What that means for an ESA:

• Fee: $150 each way within the US, Canada, Puerto Rico and the US Virgin Islands for tickets issued on or after April 8, 2025 (it was $95), and $200 on international routes. Paid at check-in.
• Kennel: Delta recommends a soft kennel of at most 18 x 11 x 11 inches; the real limit depends on the aircraft, and the kennel must fit fully under the seat in front. One per passenger, in place of your carry-on (you keep a personal item).
• Limits: 4 pets per flight in the main cabins and Comfort, 2 in domestic First, none in Delta One, Delta Premium or international business. No bulkhead, exit row or flat-bed seats. Pets must be at least 8 weeks old for domestic flights.
• Routes: no cabin pets to or from Hawaii, the UK, Australia, New Zealand and several other countries.
• Too big for a carrier: Delta ships pets in the hold only for active US military and State Department moves.

More detail, and how Delta compares, in can emotional support animals fly?

Service dogs in training on Delta

Not accepted as service dogs. Delta lists being "a dog fully-trained to assist a person with a disability (service animals in training are not eligible)" as a condition, and adds: "In most cases, a service animal in training does not qualify as a recognized service animal. However, a service animal in training may travel with a professional trainer en route to the owner." A puppy raiser or owner-trainer would need to book the dog as a pet. State laws on the ground are a separate matter; see service dogs in training.

International and Hawaii flights on Delta

Delta's advice: "Some countries prohibit the entry or transit of animals. Visit the local government's consulate." Its pet page adds the CDC rules for dogs entering the US (microchip, at least 6 months old, a CDC Dog Import Form receipt) and, for Mexico from August 3, 2026, a New World Screwworm inspection certificate issued no more than 5 days before arrival. Delta's page does not say whether that Mexico rule covers service dogs; United says its version does, so ask Delta before you fly.

The UK government lists Delta as registered to carry assistance dogs into Edinburgh, Gatwick and Manchester. Hawaii applies its own entry rules to every dog; see Hawaii's rules for service dogs, and international flights with a service dog.

Seating, size and large dogs on Delta

Your dog must "Fit within the foot space ("footprint") of your seat and not intrude into the aisles or space of other customers", and "should be placed in your lap or on the floor (foot space) in front of you." No exit rows, and "Animals are not permitted to eat from tray tables."

If one seat is not enough, Delta gives two options: "Purchase an additional ticket to allow your service animal to occupy the floor space in front of the purchased seat" or "Check your service animal to a holding area below the cabin without additional charges". Delta's cargo rules make an exception for "service dogs that can't be accommodated in the cabin".

Contacting Delta, and when we last checked

Delta's service animal page lists its accessibility contact options; use the link in the sources below rather than a number copied from another site. We read Delta's service animal, pet travel and pet shipping pages and its contract of carriage live on 2026-09-25. None of Delta's web pages shows a "last updated" date; the contract shows August 18, 2026. Compare United and American.

Common questions

Sources

1. Delta, Trained Service Animals
2. Delta, Contract of Carriage (last modified 2026-08-18)
3. Delta, pet travel overview
4. Delta Professional, service and support animals (travel agent site)
5. DOT Service Animal Air Transportation Form (PDF)
6. 14 CFR 382.75, documentation airlines may require

General information, not legal advice. Policies and laws change; follow the sources. Last checked September 25, 2026.