How to Take a Dog on a Plane: A Step-by-Step Guide

To take a dog on a plane, you generally need to: confirm your airline's pet policy and book a spot for your dog, choose cabin travel (small dogs in an approved carrier) or checked cargo (larger dogs in a crate), get an up-to-date health certificate and vaccination records from your vet, and arrive early with the correct paperwork and carrier. Rules vary by airline, destination, and whether the trip is domestic or international.

Step-by-Step: How to Fly With Your Dog

1. Check your airline's specific pet policy before booking — size limits, fees, and breed rules differ by carrier.
2. Decide cabin or cargo based on your dog's combined weight with the carrier (most cabin limits sit around 20 lb including the carrier).
3. Book a pet spot in advance — most airlines cap the number of pets allowed per cabin, so reservations fill up.
4. Visit your veterinarian to confirm your dog is fit to fly and to get a signed health certificate if your route requires one.
5. Buy an airline-compliant carrier or crate that lets your dog stand, turn around, and lie down comfortably.
6. Gather documents: vaccination records, rabies certificate, health certificate, and — for international trips — any import forms your destination requires.
7. Arrive early and check in your pet's paperwork at the counter; some airlines require in-person verification, not just online check-in.
8. Prepare your dog for the flight with crate training, a light pre-flight meal, and a familiar blanket or toy.

Cabin vs. Cargo: Which Option Fits Your Dog

Small dogs that fit inside a soft-sided carrier under the seat in front of you can usually fly in the cabin, according to the American Kennel Club (AKC). Larger dogs typically travel as checked cargo in an airline-approved hard-sided crate, ideally on a nonstop flight to reduce handling time. The AKC also notes that combined dog-and-carrier weight for cabin travel is commonly capped around 20 pounds, though the exact limit depends on the airline and carrier dimensions.

The International Air Transport Association (IATA) publishes the Live Animals Regulations (LAR), the global baseline that airlines build their own pet policies on top of. The edition that took effect January 1, 2026 sets container standards — including that carriers must be leak-proof, ventilated on at least two sides, and large enough for the animal to stand, turn, and lie down — plus documentation checklists for cargo, excess baggage, and in-cabin travel, per IATA's Live Animal Handling & Transport program.

Documents You Need Before You Fly

Paperwork requirements depend heavily on whether your trip is domestic or international:

• Domestic US flights: Most airlines don't require a signed health certificate, though puppies must generally be at least 8 weeks old. The AKC still recommends a pre-flight vet visit to confirm your dog is healthy enough to travel.
• International flights: A health certificate is typically required and is only valid for about 10 days before travel, per AKC guidance — so schedule your vet appointment close to departure, not weeks in advance.
• Re-entering the United States: According to AKC's summary of current Centers for Disease Control and Prevention (CDC) rules, dogs entering the US must be microchipped and rabies-vaccinated, with additional documentation required depending on which countries the dog has visited in the prior six months. Requirements have changed multiple times since 2024, so confirm current rules directly with the CDC or your airline before you travel.
• Traveling within the EU: You need a valid EU pet passport issued by an EU-authorized veterinarian, not a US health certificate. See the section below.

For a deeper walkthrough of the US re-entry paperwork, Animal Passport's guide to the CDC Dog Import Form covers how to complete it.

Airline Pet Policies Compared (2026)

Fees, carrier limits, and cargo availability vary by airline. Here's what two major US carriers publish on their own pet travel pages, alongside the IATA baseline all airlines work from:

Because policies change yearly, always confirm current fees and restrictions directly on your airline's site before booking — Animal Passport's dogs on airplanes guide tracks rules and documents across more carriers.

International & EU Travel: Don't Confuse the Documents

If you're flying your dog into or within the European Union, you need an EU pet passport — a standardized document issued by an EU-authorized veterinarian that records your dog's microchip number, rabies vaccination history, and owner contact details. Under the European Commission's official pet travel rules, the dog must be microchipped, vaccinated against rabies after 12 weeks of age, and wait at least 21 days after that first vaccination before traveling. The EU pet passport itself is valid for life as long as the rabies vaccination stays current, and it can only be issued to pet owners resident in the EU.

This is a legal, government-recognized travel document — and it is not the same thing as Animal Passport's biometric identity product. Animal Passport uses a phone-captured muzzle print (a dog's nose print is unique, similar to a human fingerprint) to build a digital identity record that binds an owner, breed, estimated age from a dental photo, and a body condition score from a side-profile photo, along with vaccination history the owner enters. It is a portable identity and health record, not a government-issued travel document, and it does not substitute for a health certificate, CDC import form, or EU pet passport when you fly. Airlines and border agencies will ask for their own official paperwork regardless of what identity records you carry.

Where a biometric ID record does help is proving ownership and vaccination history when paper documents are lost or destroyed. In August 2025, Animal Passport's muzzle-biometric system was used in livestock flood rescue efforts in Pakistan, allowing farmers to reclaim animals after floodwaters washed away paper ear tags. The same logic applies to a family dog: a phone-based record is harder to lose than a paper rabies certificate tucked in a glovebox. Read more on the EU dog passport rules for 2026 to see exactly which document you need for EU travel.

Service Dogs vs. Pets on a Flight

Under the US Department of Transportation's Air Carrier Access Act (ACAA) rules, a service animal is a dog individually trained to perform a task for a person with a disability, and airlines may require a DOT Service Animal Air Transportation Form attesting to the dog's training and health. Since the ACAA's 2020 rule update, emotional support animals are treated as ordinary pets — subject to the same carrier, fee, and documentation rules as any other pet, not the accommodations given to trained service dogs. If your dog isn't a trained service animal, plan and budget for it as a pet under the airline's standard pet policy described above.

Tips for a Smoother Flight

• Crate-train early. Get your dog comfortable in the actual travel carrier for days or weeks beforehand using positive reinforcement, per AKC guidance.
• Book nonstop flights when your dog is flying cargo, to minimize handling and layover stress.
• Avoid extreme-temperature travel days for cargo pets, and check your airline's seasonal embargo dates.
• Feed lightly before departure and avoid a full meal right before boarding.
• Bring familiar items — a blanket or toy that smells like home can reduce anxiety in the carrier.
• Keep copies of every document — vaccination records, health certificate, and microchip number — in both paper and phone photo form.

Frequently Asked Questions

Can I bring my dog on a plane in the cabin?

Yes, if your dog is small enough to fit in an airline-approved carrier under the seat in front of you and your airline permits in-cabin pets on that route; larger dogs typically must fly as checked cargo instead.

How much does it cost to fly with a dog?

In-cabin pet fees on major US airlines commonly run from roughly $95 to $150 per leg — Delta, for example, charges $95–$150 USD/CAD per leg in the US, Canada, and Puerto Rico as of its April 2025 rate update. Fees are typically charged per direction, not per round trip.

Does my dog need a health certificate to fly?

Domestic US flights often don't require one, but international flights usually do, and the certificate is generally only valid for about 10 days before travel, according to AKC guidance — so time your vet visit close to your departure date.

What's the difference between a service dog and a pet on a flight?

A service dog is individually trained to perform a task for a person with a disability and is covered by the DOT's Air Carrier Access Act rules, which can require a signed DOT attestation form. Emotional support animals and ordinary pets are treated the same as any other pet under airline policy, not as service animals.

Do I need an EU pet passport or a US health certificate for EU travel?

You need an EU pet passport, issued by an EU-authorized veterinarian, to move a dog within the European Union — a US-issued health certificate alone is not the same document and does not meet that requirement.

Is Animal Passport an official pet travel document?

No. Animal Passport is a phone-based biometric identity and health record using muzzle prints, dental-photo age estimates, and body condition scores; it is not a government-issued health certificate, CDC import form, or EU pet passport, and it doesn't replace the documents airlines and border authorities require.

What breeds have flying restrictions?

Many airlines restrict or ban brachycephalic (flat-faced) breeds like Bulldogs and Pugs from cargo travel due to breathing risks, though rules vary by carrier — always confirm your specific dog's breed against your airline's current policy before booking.

How early should I book a flight with my dog?

Book as early as possible, since airlines cap the number of pets allowed per cabin and pet reservations fill up separately from passenger seats — Southwest, for instance, recommends securing a pet spot by phone in advance because space is limited.

Planning a trip with your dog involves more than picking a flight — it means matching the right cabin or cargo option to your dog's size, gathering the correct paperwork for your route, and keeping a backup identity record in case documents go missing. Learn more about how phone-based biometric identity works at Animal Passport, and browse more travel guides on the Animal Passport blog.