Aer Lingus service animal policy: trained service dogs, ESAs and the DOT form

Which rules apply to an Aer Lingus flight?

• US DOT rules cover a foreign airline "only with respect to flights you operate that begin or end at a U.S. airport" (14 CFR 382.7(b)). Aer Lingus uses the DOT forms on those flights.
• Aer Lingus's own rules apply on its flights within Europe, where it requires an ADI or IGDF trained dog with an ID card.
• The destination's entry rules apply everywhere. Aer Lingus says trained service dogs "must also be compliant with the pet travel rules at your destination".

Aer Lingus uses the term "trained service dog"; you will also see "assistance dog", the usual European term, on the Irish and UK government pages.

Service dogs on Aer Lingus: what Aer Lingus requires

Aer Lingus's disability assistance page (read live on 2026-09-29) says "A trained service dog must be individually trained to do work or perform a task for the passenger's benefit." On all its flights:

• The dog "must be harnessed, leashed or tethered at all times" and "must be clean and well-behaved".
• If you cannot keep physical control of the dog, "even if the reason is related to the person's disability", Aer Lingus may refuse it in the cabin.
• Muzzled breeds. These breeds "must be securely muzzled and be led by a sufficiently strong chain or leash not exceeding two metres in length by a person over the aged of sixteen years": American Pit Bull Terrier, Bull Mastiff, Doberman Pinscher, English Bull Terrier, German Shepherd (Alsatian) and Japanese Akita. The list mirrors Irish dog-control law. On US routes it sits uneasily with the DOT rule, which bars denying transport based on breed (14 CFR 382.72); we have not seen that tested. If your dog is on the list, talk to Aer Lingus before you book.
• Number: one service dog per passenger in Europe; two on flights to or from the US and Canada, including connecting flights on the same itinerary.

How to add a service dog to an Aer Lingus booking

1. Book your flight, then send a special assistance request from Aer Lingus's disability assistance page.
2. US flights: attach the DOT form, and the relief form if the flight is 8 hours or more. Europe: attach proof of the training organization's IGDF or ADI affiliation.
3. Aer Lingus also publishes its own Trained Service Dog Form (a PDF dated June 2025) asking for breed, weight, height, shoulder width, rabies dates, vet and trainer. The form says to upload it with your special assistance request and carry it when you travel.
4. Ask for seating "as early as possible" and "at the latest 24 hours before departure".

Final approval happens at the airport: "Final approval for travel will not happen until you arrive at the airport and it is determined that the animal will safely fit within the allotted space." And Aer Lingus "is not obliged to accept service dogs for carriage if the required documentation has not been provided by the passenger prior to boarding."

Submitting the DOT form to Aer Lingus

Aer Lingus: "Passengers travelling to/from the USA must complete and submit the US DOT Service Animal Air Transportation Form ... If your flight time is eight hours or longer you are also required to complete a US DOT Service Animal Relief Attestation Form". That 8-hour trigger matches the DOT rule. It uses the same DOT form for Canada, Barbados and Mexico.

Timing: "For travel booked 48 hours or more prior to departure, customers must submit this documentation 48 hours prior to your flight via special assistance request. For travel booked less than 48 hours prior to departure, you may present the documentation at the airport check-in desk or departure gate." On US flights the DOT form's instructions add that you need not provide a training certificate, and an owner-trainer can list their own name. Help with each field: the DOT service animal form, explained.

Psychiatric service dogs on Aer Lingus

Aer Lingus does not name psychiatric dogs. On flights to or from the US, the DOT rule treats a psychiatric service dog like any other service dog, with no mental health letter required. Within Europe, the dog must be trained by an IGDF or ADI affiliated organization and carry that organization's ID card, so an owner-trained psychiatric dog will not qualify on Aer Lingus's European flights. See psychiatric service dogs.

Emotional support animals on Aer Lingus

Not accepted on board, and there is no cabin pet option to fall back on. "We only accept dogs as service animals for carriage in the cabin of our aircraft," Aer Lingus says. Its pet page says pets "must be booked for carriage in the aircraft hold via a pet agent at IAG Cargo", and "Pets brought with you to an Aer Lingus check in desk will not be accepted under any circumstances." The hold option is not available on the A321neo LR or on Aer Lingus Regional flights, and IAG Cargo sets the fees. Aer Lingus's pages do not describe any separate path for an ESA.

That makes Aer Lingus stricter than US airlines, which carry ESAs in the cabin as pets. Compare in can emotional support animals fly?

Service dogs in training on Aer Lingus

Not accepted. Service animals in training are in the same sentence as pets and ESAs: they "will not be accepted for travel on board any Aer Lingus aircraft." The DOT rule also excludes dogs in training on US flights.

Flying into Ireland with a service dog, and back to the US

Ireland. Ireland is in the EU, so a dog flying in from the US meets the EU rules in force since 22 April 2026: an animal health certificate issued not more than 10 days before arrival, a microchip before the rabies vaccine, a vaccine given at 12 weeks or older and valid 21 days after the first dose, and tapeworm treatment 24 to 120 hours before entering Ireland. Arriving from a non-EU country, including Great Britain, also involves advance notice and a compliance check booked with Ireland's Department of Agriculture, Food and the Marine; follow its pet travel page for the current steps.

The UK. GOV.UK (updated 2026-09-25) registers Aer Lingus to carry assistance dogs into "All airports with a government approved assistance dog checker". Great Britain's own pet rules apply to assistance dogs too.

The US. Aer Lingus points to the CDC rule: every dog entering the US needs a CDC Dog Import Form, a microchip and an age of at least 6 months. Full checklist: international flights with a service dog.

Seating, size and large dogs on Aer Lingus

"Service dogs must be able to fit at your feet, under your seat or in your lap (more than one dog or a large dog may not be seated in your lap)." No exit rows, no blocking the aisle, and in Business you give up the lie-flat seat so the dog can use the floor space. Service dogs fly free if they fit; if not, you "may be required to pay for an additional seat if available, or to rebook on another flight with more seat availability or transport the dog as a pet."

Contacting Aer Lingus, and when we last checked

Use the special assistance request on Aer Lingus's disability assistance page, linked below. On a US flight, the DOT says unresolved problems go to the airline's Complaints Resolution Official. We re-read the disability assistance page and the Trained Service Dog Form live on 2026-09-29; the pet page facts come from an Internet Archive capture of 2026-09-16. Compare British Airways. For European flights, only the training organization's ID card counts. A registry card, ours included, is not a substitute; our voluntary record just keeps your dog's details in one place.

Common questions

Sources

1. Aer Lingus, disability assistance (trained service dogs)
2. Aer Lingus, Trained Service Dog Form (PDF)
3. Aer Lingus, travelling with pets
4. Ireland, Department of Agriculture, Food and the Marine: Pet Travel
5. 14 CFR 382.72, no breed-based denials
6. DOT Service Animal Air Transportation Form (PDF)
7. European Commission, bringing a pet into the EU from a non-EU country
8. GOV.UK, airlines and airports registered to transport and check assistance dogs

General information, not legal advice. Policies and laws change; follow the sources. Last checked September 29, 2026.