Flying With a Large Dog in Cargo: What to Check First

Flying with a large dog in cargo requires more planning than choosing a sturdy crate. The most useful questions are about the exact aircraft, where your dog waits before and after the flight, who is responsible during a transfer, what happens during a delay, and how an emergency is handled.

Those details matter because a dog’s trip includes check-in, ground holding, loading, the flight itself, unloading, transfers, and final handoff—not just the hours in the air.

That became painfully clear after the death of Bubble, a Golden Retriever traveling on Korean Air in September 2026. The case is still unresolved, so it should not be used to claim that every dog transported in an aircraft hold is unsafe. It does show why owners of large dogs should understand the entire transport process before booking.

What Happened to Bubble on Korean Air Flight KE868?

On September 3, 2026, Bubble, a Golden Retriever who was nearly six years old, traveled on Korean Air flight KE868 from Guangzhou, China, to Incheon, South Korea. Bubble’s owner was traveling through Incheon on the way to the United States. After arrival, Bubble was found dead inside the travel crate.

Korean Air said Bubble was already dead when the aircraft door was opened. The airline also said that other pets on the same flight did not show health problems and that the environment required for animal transport had been maintained. The exact cause of Bubble’s death has not been confirmed.

Bubble’s owner has questioned the roughly two-hour period between landing and receiving her dog. She has requested CCTV footage and records covering transportation, unloading, handoff, and staff activity so she can determine when the problem occurred and what happened before Bubble was returned to her.

At this point, it would be speculation to blame cargo-hold temperature, oxygen levels, crate handling, stress, or any other single cause. For dog owners, the more useful lesson is to find out what can be documented before a flight, during a transfer, and after arrival.

Why Large Dogs Often Cannot Fly in the Cabin

Most passenger cabins accept pets only when the animal can remain inside an approved carrier under the seat. That makes cabin travel impossible for many medium and large dogs.

Korean Air, for example, currently allows in-cabin travel when the combined weight of the pet and carrier is 15 lb (7 kg) or less. For checked transport in the aircraft hold, the dog must be at least 16 weeks old and the combined dog-and-crate weight must be 99 lb (45 kg) or less. The airline also limits crate dimensions and notes that some countries may restrict transport when the combined weight exceeds 32 kg.

For checked pets, Korean Air currently lists a maximum combined crate dimension of 114 inches (291 cm), with a maximum height of 33 inches (84 cm). It also restricts checked pet transport on Boeing 737 and Airbus A321 aircraft for international flights and during June through September for domestic flights on those aircraft. Korean Air states that pets accepted into the hold travel in a compartment where ventilation, temperature, and lighting can be controlled.

For U.S. travelers, terminology can also be confusing. A pet traveling below the passenger cabin may be handled as checked baggage on one airline and as an air-cargo shipment on another. Pet policies vary considerably between carriers, so a passenger ticket alone does not mean the airline will accept a large dog on that flight.

The Crate Must Fit the Dog, Not Just the Airline Limit

An airline’s maximum permitted crate size is not the same as the minimum size your dog needs.

The International Air Transport Association (IATA) says a dog should have enough space to stand and sit naturally, turn around while standing, and lie down in a normal position. Its current container guidance uses the dog’s own measurements to estimate minimum internal crate dimensions.

For one dog, IATA’s approximate calculation is:

Crate measurement	IATA guidance
Internal length	Nose to base of tail + half the elbow height
Internal width	Twice the shoulders or widest body measurement
Internal height	Natural standing height + bedding

An airline may impose stricter equipment limits, so measure the dog first, calculate the crate the dog actually needs, and then check whether that crate is accepted on the aircraft.

This becomes especially important for large breeds. The crate itself adds weight, and a kennel tall enough for a Golden Retriever, German Shepherd, Labrador Retriever, or similarly sized dog may exceed an airline’s limits even when the dog’s body weight appears acceptable.

Hard-sided crates also need appropriate ventilation, secure fasteners, a leak-resistant floor, and closures that cannot be forced open from inside. Korean Air requires a sturdy metal, wood, or plastic container secured with screws for checked transport, and wheels or loose accessories must be removed.

If your dog is small enough for cabin travel, the equipment requirements are different. In my LikaLika Cushion Bag review, I also note that a carrier that works well for everyday outings should not automatically be assumed to meet a specific airline’s current size and combined-weight rules.

Ground Time and Transfers Matter Too

Owners often concentrate on what happens while the airplane is cruising. The dog may also spend substantial time in check-in areas, animal holding rooms, airport ramps, transfer facilities, and baggage or cargo areas.

USDA APHIS guidance for personnel handling dogs and cats during air transportation emphasizes careful kennel handling, moving animals between holding areas and aircraft as quickly as possible, protecting them from extreme temperatures, providing adequate ventilation in holding areas, and using appropriate pressurized and temperature-controlled animal cargo spaces during flight.

A nonstop flight reduces the number of handoffs, but it does not eliminate ground handling.

A connection adds another set of questions. Who receives the crate after the first flight? Is the dog transferred to a climate-controlled animal facility? Who checks the dog during a long layover? Can water be provided? What happens if the incoming flight is late and the connection is missed?

“Pet accepted” does not answer those questions. Ask the operating airline or its animal-cargo department how the dog will actually move through the specific airport.

What to Ask Before Flying With a Large Dog in Cargo

Before booking, ask for written answers whenever possible. An email or message cannot prevent an accident, but it gives you a clearer transport plan and a record of the information the airline provided.

1. Is my dog accepted on the exact operating carrier, flight number, and aircraft type?
2. Will my dog travel as checked baggage in the hold or as an air-cargo shipment?
3. What are the combined dog-and-crate weight limit and maximum crate dimensions for this route?
4. During a connection, who takes custody of the crate and where is the dog kept?
5. What happens if the flight is delayed, diverted, canceled, or the connection is missed?
6. What temperature or weather restrictions can stop pet transport at the departure, transfer, or arrival airport?
7. Where and when will my dog be returned after arrival, and which department is responsible?
8. Who should I contact if my dog cannot be located promptly after landing?
9. What happens if a dog appears sick or unresponsive during ground handling?
10. What transport, loading, unloading, handoff, incident, or CCTV records may exist, and how long are they retained?

The final question does not mean every airline or airport will have the same records. CCTV availability, operational logs, retention periods, and disclosure rules vary. The purpose is to learn before departure what information could be used to reconstruct the transport process if something goes wrong.

Check Health, Weather, Water, and Sedation

A veterinarian can help determine whether air travel is appropriate for an individual dog. Illness, injury, age, respiratory problems, difficulty regulating body temperature, or severe distress during confinement can affect whether flying is a reasonable choice. AVMA travel guidance recommends considering the animal’s health and temperament before deciding to travel.

Sedation is not a routine solution for flight anxiety.

IATA says sedatives and tranquilizers are not encouraged for animals traveling either in the cabin or aircraft hold because of potential adverse effects during transport. Korean Air specifically lists pets that have been given sedatives or sleeping medication among animals restricted from transport.

If your dog becomes highly anxious in a crate, discuss that problem with your veterinarian before travel rather than giving medication simply to make the dog quieter.

Water also needs to be planned around the airline’s crate requirements. Korean Air tells passengers who want water available during transport to prepare a dedicated watering device that is firmly secured to the crate door or interior. IATA recommends maintaining access to water before travel and familiarizing the animal with the crate well in advance of departure.

Weather matters during loading and unloading as well as during the flight. Airline hot- and cold-weather policies can differ by aircraft, route, and season. Recheck the forecast and your airline’s current pet restrictions shortly before departure rather than relying only on the policy you read when the reservation was made.

U.S. Owners Can Check Airline Animal-Incident Reports

The U.S. Department of Transportation requires covered U.S. airlines to report incidents involving the death, injury, or loss of animals during air transportation.

For incidents occurring in 2026, the required report includes information such as the carrier and flight number, date and time, description of the incident, reported cause, and any corrective action taken.

These reports can be useful when researching U.S. carriers. However, they are not a worldwide database of every pet incident. The DOT reporting requirement described on the agency’s 2026 page applies to covered U.S. air carriers.

A Large Dog’s Flight Should Be a Transport Plan, Not Just a Reservation

Flying with a large dog in cargo may be necessary during an international relocation or another journey that cannot reasonably be completed by car.

The Bubble case does not establish that every cargo-hold journey is dangerous. It also does not yet establish why Bubble died.

What the case does highlight is how little an owner may know once the crate leaves the check-in area.

Before paying for the trip, make sure you know the aircraft restrictions, crate limits, transfer procedure, weather rules, delay plan, handoff location, emergency contact, and what records are created while your dog is being transported.

A reservation tells you that an airline plans to carry your dog. A transport plan tells you how your dog is supposed to move from your hands to the aircraft and back to you again.

For a large dog that cannot remain with you in the passenger cabin, that second part deserves just as much attention as the ticket.

Source:

• The Asia Business Daily — “Tell Me What Happened”: Pet Dog Dies After Flight, Korean Air Responds
• Korean Air — Flying With Pets
• International Air Transport Association — Traveler’s Pet Corner
• USDA APHIS — Pets on Planes: Preparing Pets for Air Travel
• USDA APHIS — Pets on Planes: Care and Handling During Air Travel
• U.S. Department of Transportation — Flying With a Pet
• U.S. Department of Transportation — Reporting of Incidents Involving Animals During Air Transport in 2026