Delta Airline Pet Policy 2025: Everything You Need to Know

Flying with a pet can transform a routine trip into a logistical puzzle, and Delta’s rules are among the most clearly defined—yet frequently misunderstood—in the industry. Whether you’re relocating across the country or simply unwilling to leave your four‑legged family member behind, understanding the Delta Airline pet policy for 2025 is the difference between a smooth departure and a tearful scene at the ticket counter. Every detail, from the approved carrier dimensions that shift with each aircraft type to the list of forbidden snub‑nosed breeds, has been shaped by safety data and federal regulation. This guide walks you through the entire process, from booking to baggage claim, so you can focus on the adventure ahead rather than the anxiety of the unknown.

Can My Pet Fly on Delta in 2025?

Delta permits cats, dogs, and household birds to travel in the cabin on most flights within the United States, Canada, Mexico, the Caribbean, and Bermuda. However, the airline discontinued accepting pets as checked baggage several years ago and no longer transports live animals in the cargo hold through its standard passenger operations. If your dog or cat is too large to fit under the seat, your only option through Delta itself is Delta Cargo—a separate service with its own set of rules, seasonal embargoes, and airport availability.

Itinerary restrictions catch many travellers off guard. Delta does not allow in‑cabin pets on flights to or from Hawaii, Australia, New Zealand, the United Kingdom, Ireland, South Africa, Hong Kong, and several other countries with stringent import regulations. Even on routes where pets are technically permitted, the airline caps the total number of in‑cabin animals per flight. Once the limit—often just two to four carriers, depending on the aircraft—is reached, no additional pets can board, regardless of how early you purchased your own ticket. This makes calling Delta reservations immediately after booking absolutely essential.

Beyond cabin limits, weather plays a decisive role for any animal travelling as cargo. Delta Cargo will not accept live animals if temperatures at any point along the journey are forecast to exceed 85°F (29°C) or drop below 20°F (-7°C). Even a sudden summer heatwave can ground a cargo booking, so if you choose that route, build in flexibility and monitor forecasts obsessively in the days before travel.

Delta In‑Cabin Pet Requirements at a Glance

Meeting every condition on Delta’s checklist is the only way to guarantee your pet boards with you. Agents are trained to enforce these rules without exception, and refunds of the pet fee are rarely granted if you are denied boarding for non‑compliance.

Age and Health

  • Domestic U.S. flights: Puppies and kittens must be at least 8 weeks old.
  • International travel to the U.S.: Minimum age rises to 16 weeks.
  • European Union destinations: Pets must be at least 15 weeks old and have a valid rabies vaccination administered no sooner than 21 days before travel.
  • Health certificate: Not required for domestic routes, but a current health certificate issued within 10 days of travel is mandatory for most international itineraries. Always verify requirements through the USDA APHIS Pet Travel website, as some countries also demand tapeworm treatment, tick checks, or import permits.

Carrier and Size Restrictions

Your pet must remain completely inside a soft‑sided, leak‑proof, well‑ventilated carrier that can be fully zipped closed. Hard‑sided kennels are not permitted in the cabin because they cannot be compressed to slide under the seat. The animal must be able to stand, turn around, and lie down naturally without touching the top of the carrier.

Delta does not publish a single maximum carrier size because under‑seat dimensions vary by aircraft and even by seat. Below are the general dimensions you should target for the most common mainline and regional jets. Always confirm your specific flight’s aircraft type and seat assignment on Delta’s pet travel page before ordering a carrier.

  • Boeing 737‑800 / 737‑900ER / A321: approximately 18″ L × 14″ W × 10″ H for window and middle seats. Aisle seats often have narrower under‑seat spaces due to support bars.
  • Airbus A320 / A319: similar to Boeing, around 17.5″ L × 14″ W × 10″ H in most seats.
  • CRJ‑700 / CRJ‑900 (regional jets): space is much tighter, typically 17″ L × 12″ W × 7.5″ H. If you are flying on a smaller regional jet, a carrier that fits a mainline aircraft may be refused.
  • Embraer E170 / E175: generally 17″ L × 13″ W × 7.5″ H. Again, measure carefully.
  • Bulkhead, exit row, and Delta One seats with inflatable seat belts: no under‑seat stowage or restricted stowage means your pet cannot travel there. Always select a standard coach or premium select seat with a full under‑seat space.

Birds: Specific Rules for Feathered Passengers

Only household birds—such as parakeets, cockatiels, lovebirds, and small parrots—are permitted. Poultry, birds of prey, and wild‑caught birds are banned. The cage must be secure enough that the bird cannot escape and must fit entirely under the seat. Many bird owners use a small, hard‑sided travel cage wrapped in a soft cover for darkness, but the outer cover must still allow ventilation. All bird travellers are subject to the same pet fee and in‑cabin count limits.

Number of Pets and Litters

Each passenger may travel with only one carrier. Inside that carrier, only a single pet is allowed—with one exception: a nursing mother cat or dog may travel together with her unweaned litter, provided the litter is between 8 weeks and 6 months of age and all animals fit comfortably and safely within a single carrier. If you need to bring two adult pets, you will need a second passenger travelling on the same reservation to act as the handler for the second carrier.

Delta Pet Fees for 2025

Delta charges a one‑way fee per carrier that is collected at the time you confirm your pet’s reservation. The rates as of 2025 are:

  • Domestic flights (U.S., Canada, Puerto Rico, U.S. Virgin Islands): $95 each way.
  • International flights (Mexico, Caribbean, Bermuda, Central America): $125 each way.
  • Brazil: $75 each way.

These fees are non‑refundable if you voluntarily cancel or are denied boarding for failing to meet the policy requirements. If Delta cancels or significantly delays your flight, the fee will be transferred to the new itinerary, but you may need to proactively notify the reservations agent. Emotional support animals are now classified as standard pets and are subject to the same fees and restrictions; only trained service dogs travel free of charge.

How to Book a Pet on a Delta Flight

You cannot add a pet to your booking online during initial purchase. After buying your own ticket, you must call Delta reservations at 1‑800‑221‑1212 (or the international equivalent) and request a pet‑in‑cabin spot. The agent will check availability on your specific flight, apply the fee, and link the pet to your itinerary. This step should happen the same day you book—preferably within the same hour—since the limited pet slots fill rapidly, especially during holidays, spring break, and summer weekends.

Have your confirmation number, pet’s breed and age, and the exact dimensions of your carrier ready when you call. You will also be reminded that you cannot sit in an exit row, a bulkhead seat, or any seat with an inflatable safety belt. If your original seat assignment violates these rules, the agent can help you choose a new seat. Note that pet bookings are only allowed on Delta‑operated flights; codeshare flights operated by partners like Air France, KLM, or Virgin Atlantic will not honour Delta’s in‑cabin pet policies.

Delta Carrier and Kennel Rules

The single most common reason for gate‑side rejection is a carrier that is too large or improperly styled. Delta requires a soft‑sided, leak‑proof, and well‑ventilated carrier with a secure closure. While the airline does not endorse a particular brand, many frequent travellers rely on the Sherpa Original Deluxe or the Sleepypod Air. Both are designed to fit the under‑seat contours of mainline Boeing and Airbus jets when their rigid supports are slightly depressed. However, for smaller regional jets, a compact carrier like the SturdiBag or the Sherpa Medium may be necessary.

When choosing a carrier:

  • Look for a removable fleece‑lined pad that can absorb minor accidents. Line the floor with a disposable pee pad anyway.
  • Avoid carriers with external wheels or thick rigid frames that protrude. Wheels, if present, should be fully removable and detached before boarding.
  • Mesh panels should be small enough that a claw or beak cannot escape, but plentiful enough to ensure steady airflow.
  • Carry a fabric measuring tape with you to the airport. A gate agent has the final authority to determine if your carrier fits, and if it doesn’t slide completely under the seat without forced compression, boarding will be denied.

Restricted Breeds and Pets That Cannot Fly Delta

A core part of Delta’s pet policy is a list of brachycephalic (snub‑nosed) breeds that are prohibited from travelling in the cabin. These animals have compressed nasal passages and elongated soft palates that can cause severe respiratory distress at altitude. The ban applies to both purebred and mixed‑breed animals that exhibit snub‑nosed features.

Dogs Not Accepted in Cabin

  • Affenpinscher
  • American Bully
  • Boston Terrier
  • Boxer (all varieties)
  • Brussels Griffon
  • Bulldog (English, French, and Olde English)
  • Cane Corso
  • Cavalier King Charles Spaniel
  • Chow Chow
  • Dogue de Bordeaux
  • Japanese Chin
  • Lhasa Apso
  • Mastiff (all breeds)
  • Pekingese
  • Pit Bull type breeds
  • Pug (all varieties)
  • Shar Pei
  • Shih Tzu
  • Staffordshire Bull Terrier
  • Tibetan Spaniel

Cats Not Accepted in Cabin

  • Burmese
  • Exotic Shorthair
  • Himalayan
  • Persian

Important exception for service dogs: Trained service dogs that are individually trained to perform tasks for a person with a disability are exempt from the breed restriction. However, the dog must still fit within the handler’s foot space without protruding into the aisle, and the handler must be prepared to present the DOT’s Service Animal Air Transportation Form before travel.

Aggressive, ill, heavily pregnant, or recently sedated pets are also prohibited. If your pet shows any sign of respiratory infection, extreme anxiety, or aggression at the check‑in counter, Delta will deny boarding—even if you have a confirmed booking.

International Pet Travel on Delta: A Step‑by‑Step Checklist

International travel amplifies every rule tenfold. Delta permits pets on flights to Canada, Mexico, the Caribbean, Bermuda, and select Central American destinations, but the moment your journey crosses an ocean or enters a rabies‑controlled country, the documentation requirements become complex. Missing a single document can result in your pet being quarantined or sent back at your expense.

Essential Preparations for International Flights

  • ISO‑compatible 15‑digit microchip: Implanted before the rabies vaccination. If the microchip cannot be scanned, the vaccination certificate may be considered invalid.
  • Rabies vaccination: Must be current and given at least 21 days before travel (for most destinations) but within the vaccine’s validity period. Kittens and puppies must meet the minimum age for vaccination of the destination country.
  • Rabies titer test (for EU and some other regions): A blood test drawn at least 30 days after the rabies vaccination and at least three months before travel. The sample must be processed at an EU‑approved laboratory.
  • International Health Certificate: Issued by a USDA‑accredited veterinarian, typically within 10 days of departure. Many countries then require the endorsement of the USDA APHIS office—an endorsement process that can take several days, so start as early as the 10‑day window allows.
  • Additional treatments: The United Kingdom requires tapeworm treatment administered by a veterinarian 24 to 120 hours before arrival. Some Caribbean nations demand tick and flea treatment. Australia and New Zealand require a lengthy quarantine reservation and an import permit arranged months in advance.
  • Import permits and embassy notification: Always visit the website of the destination’s embassy or veterinary authority. Regulations can change overnight, and only the government‑issued documentation counts.

For any international itinerary, start your paperwork at least three to four months in advance. The USDA APHIS Pet Travel page remains the best starting point, but cross‑reference it with the country’s official agricultural ministry site.

Alternatives When Your Pet Cannot Fly in the Cabin

If your pet exceeds the size limits, is a restricted breed, or travels to a country that bars in‑cabin animals, you are not without options—but plan for a far more involved process.

Delta Cargo

Delta Cargo operates a separate live‑animal shipping service that uses temperature‑controlled, pressurized cargo holds. This service is available to many international destinations, including some that prohibit in‑cabin pets, and can accommodate larger IATA‑compliant hard kennels. However, Delta Cargo is not a last‑minute solution: you must book through a dedicated Cargo office, the kennel must meet International Air Transport Association (IATA) standards, and severe weather embargoes apply at both origin and destination. Snub‑nosed breeds remain banned even in cargo. Costs vary by weight and distance but often exceed $200 each way, and handling fees are additional.

Specialized Pet Transport Services

For complex moves, a professional pet relocation company can handle every detail from flights to customs clearance. Organisations like the International Pet and Animal Transportation Association (IPATA) maintain searchable directories of vetted shippers. Companies such as PetRelocation, Air Animal, and Blue Collar Pet Transport offer door‑to‑door service, arrange charter flights when commercial options fail, and are invaluable for military relocations or when moving to countries with strict quarantine protocols.

Pet Sitters and Boarding Facilities

For shorter trips, a high‑quality boarding facility or an in‑home sitter often causes the least stress. Veterinary clinics frequently offer medical boarding for pets with health needs, while platforms like Rover and Wag connect you with background‑checked sitters. Book as early as possible during holiday peaks, and arrange a trial overnight stay to ensure your pet is comfortable in the new environment.

Service Dogs vs. Pets on Delta

Trained service dogs that perform specific tasks for a person with a disability are exempt from the pet fee and are permitted in the cabin even if they exceed typical size limits, provided they can fit in the handler’s foot space without blocking the aisle. Delta requires the submission of the U.S. Department of Transportation’s Service Animal Air Transportation Form, which confirms the dog’s training, health, and behaviour. Psychiatric service dogs are recognised only if they are individually trained to do work or perform tasks; comfort alone does not qualify.

Emotional support animals (ESAs) have been reclassified as pets since 2021. They must travel in a carrier that fits under the seat, and all pet fees, breed restrictions, and documentation requirements apply. If you rely on an ESA for anxiety or other conditions, treat the animal exactly as you would any other pet and make the same preparations.

Preparing Your Pet for a Delta Flight

A calm pet is a safe pet, and preparation begins weeks before your departure date. The following routine has proven successful for countless Delta flyers:

  • Carrier acclimation: Leave the carrier open in your living space with a comfortable pad, treats, and a favourite toy. Feed your pet inside the carrier occasionally. Once they enter voluntarily, zip it closed for brief periods and offer praise. Progress to short car rides that simulate the vibration and noise of a flight.
  • Exercise before the airport: A long walk, vigorous play, or, for cats, a focused play session with a wand toy can drain nervous energy. A tired animal is far more likely to sleep through most of the flight.
  • Food and water management: Delta suggests a light meal no less than four hours before departure. Offer water until you leave for the airport, but avoid a full bowl right before security. Freeze a small insertable water dish so that water melts slowly during the flight, preventing spills while still providing hydration on longer segments.
  • Calming aids: Pheromone sprays like Adaptil (dogs) or Feliway (cats) can be applied to the carrier pad 15 minutes before departure. Anxiety wraps such as the ThunderShirt may help some dogs. Never sedate your pet without direct veterinary instruction, as sedatives can dangerously suppress respiration at altitude.
  • Identification and backup plan: Attach a durable ID tag with your mobile number and destination contact to your pet’s collar. Even better, tape a recent printed photo of your pet to the carrier exterior—if an escape occurs during security screening, a photograph speeds reunification. Ensure the microchip registration is up‑to‑date with your current phone number.

What to Expect at the Airport and Onboard

Arrive at least two hours before a domestic flight and three hours for international itineraries. You cannot check in at a kiosk; you must visit the full‑service Delta counter so an agent can verify the carrier and, if you haven’t already paid, collect the fee. Keep your pet inside the carrier until you reach the TSA screening checkpoint.

At security, you will be asked to remove your pet from the carrier and carry them through the metal detector while the carrier goes through the X‑ray machine. A well‑fitted harness and leash are invaluable here to prevent a frightened scamper into the terminal. If your pet is likely to bolt, you may request a private screening room; the TSA website explains this procedure in detail.

Once onboard, the carrier must remain stowed under the seat in front of you for the entire flight—gate to gate. You cannot place it in an overhead bin, hold it on your lap, or open the carrier door for any reason. Flight attendants are required to enforce this rule, and blocking a fellow passenger’s foot space with the carrier can lead to a seat change or even a notation on your travel record that could affect future pet bookings.

Many airports now feature pet relief areas post‑security. Larger hubs like ATL, DTW, MSP, and LAX have designated indoor spaces with artificial turf and sanitation stations. Plan a quick stop there after security and before boarding, but keep a tight eye on the clock—doors close on time whether you’re in a pet area or not.

Common Reasons Pet Bookings Are Denied

Even a confirmed reservation does not guarantee boarding. Gate agents will refuse transport if they observe any of the following:

  • Carrier fails the fit test: The carrier does not slide completely under the seat without forced compression, or it has hard sides, wheels, or lacks adequate ventilation.
  • Pet appears distressed or unwell: Excessive panting, vocalising, drooling, lethargy, or aggression can all be cause for denial.
  • Documents are missing or expired: International health certificates older than 10 days, lack of proper rabies documentation, or a missing import permit will ground your pet immediately.
  • Last‑minute aircraft swap: A change to a regional jet with smaller under‑seat dimensions can disqualify a carrier that would have fit on the originally scheduled mainline plane.
  • Pet limit already reached: If the cabin pet capacity was filled by earlier passengers, your pet cannot board, and you will need to be rebooked.

To protect yourself, carry a printed copy of Delta’s pet policy, your pet confirmation receipt, and all health documents. Have a backup plan—such as a local friend or boarding facility on standby—so that a denied boarding does not ruin your trip entirely.

Delta Pet Policy Frequently Asked Questions

Can I bring two pets in the same carrier?

Only if they are a mother with her unweaned litter aged 8 weeks to 6 months, and all animals fit comfortably inside a single approved carrier. Otherwise, Delta strictly enforces one pet per carrier and one carrier per passenger. If you have two adult pets, you will need a second ticketed passenger to travel with you and handle the second carrier.

Are there weight limits for pets in the cabin?

Delta does not publish a specific weight limit. Instead, the rule is functional: the pet and carrier together must fit completely under the seat in front of you without forcing the carrier, and the animal must be able to stand, turn around, and lie down naturally. In practice, most in‑cabin travellers weigh under 20 pounds, but a longer‑bodied dog that meets the size criteria may be accepted even if slightly heavier.

Can my pet fly with me in Delta One or First Class?

Pets are allowed in first class and in Delta One on some aircraft, but only if the specific seat has a footwell that can stow the carrier without blocking the lie‑flat mechanism. On Delta One suites with a door (such as the Airbus A350), under‑seat space is often insufficient or the carrier obstructs the door’s operation, so pets are frequently prohibited. Always verify aircraft configuration and ask the reservations agent to confirm your seat’s suitability for a pet carrier.

Does Delta accept reptiles, rodents, or rabbits?

No. Only dogs, cats, and household birds are permitted. Rabbits, ferrets, hamsters, guinea pigs, mice, rats, snakes, lizards, turtles, and all other animals are banned from the cabin and from Delta Cargo in the passenger‑facing system. If you need to move an exotic pet, contact a specialist live‑animal shipper that charters freight.

How early should I call Delta to add my pet?

The moment you finish buying your ticket. Pet slots are limited and assigned on a first‑come, first‑served basis. During school breaks, the winter holidays, and summer weekends, slots can fill weeks ahead. Calling Delta reservations within minutes of booking is the single most effective way to secure a confirmed spot.

What happens if my flight is cancelled and I need to be rebooked?

If Delta initiates a schedule change or cancellation, the airline will rebook you on the next available flight that has an open pet slot. The pet fee transfers to the new itinerary. If no same‑day flight with availability exists, you may need to wait until the following day. For voluntary changes or cancellations, the pet fee is non‑transferable and non‑refundable, so avoid making changes unless absolutely necessary.

Final Advice for Flying Delta with Your Pet in 2025

Delta’s pet policy is rigorous because it was built on years of incident data and a genuine commitment to animal welfare. While the rules can feel restrictive, they exist to keep your pet safe at 35,000 feet. Book early, measure your carrier against the exact aircraft in your reservation, and keep your paperwork in a clear plastic folder at the top of your carry‑on. When you’ve done everything right, the hardest part of the journey will be resisting the urge to unzip the carrier for a peek.

For the most current updates, always consult Delta’s official pet travel page. For independent reviews of pet‑friendly airports and side‑by‑side airline policy comparisons, BringFido remains an excellent ongoing resource.