How Do You Fly With a Dog? Step-by-Step Rules for 2026

To fly with a dog, you book a pet-approved fare, confirm your dog meets the airline's age, weight, and carrier rules, get any required health paperwork, and check in early so staff can verify everything before boarding. Small dogs usually ride in an approved carrier under the seat; larger dogs travel as checked cargo or air cargo, subject to temperature limits. International trips add government paperwork on top of airline rules.

Key Takeaways

• Confirm your airline's pet policy and book a pet spot before buying your own ticket — cabin space is limited and first-come, first-served.
• Your dog must generally be at least 8 weeks old and fully weaned to fly, per International Air Transport Association (IATA) guidance.
• Domestic U.S. flights rarely require a federal health certificate; international flights almost always do.
• Leaving the U.S. is governed by USDA APHIS; returning to the U.S. is governed by the CDC — they are different agencies with different forms.
• TSA screens pets separately from carry-on bags — the carrier goes through the X-ray empty, and the dog is carried or walked through.
• Sedating a dog for a flight is discouraged by IATA and most airlines because of respiratory and temperature risks.

How Do You Fly With a Dog? 7 Steps

1. Check your airline's pet policy first. Every airline sets its own rules for cabin eligibility, breed restrictions (snub-nosed breeds are frequently barred from cargo), and pet counts per flight. Call reservations before you book your own seat.
2. Confirm your dog meets minimum age and health rules. IATA's baseline is that pets must be “at least eight weeks old and fully weaned before traveling by air,” though many airlines and countries require older dogs for international travel.
3. Choose the right carrier for cabin or cargo. A cabin carrier must let your dog “turn around normally while standing, to stand and sit fully, and to lie in a natural position,” per IATA, and must fit under the seat in front of you. Cargo/checked kennels follow separate, larger IATA Live Animals Regulations dimensions.
4. Gather the right paperwork for your route. Domestic flights typically need only the vaccination records your airline requests. International departures usually require a USDA-endorsed health certificate; returning to the U.S. requires separate CDC documentation (details below).
5. Book early and pay the pet fee. Delta Air Lines, for example, charges $150 each way for in-cabin pets on U.S., Canada, Puerto Rico, and U.S. Virgin Islands routes, and $200 each way internationally, for tickets issued from April 8, 2025 onward. Other major carriers charge similar per-direction fees.
6. Get through TSA screening correctly. Remove your dog from the carrier before the checkpoint, send the empty carrier through the X-ray, and carry or walk your leashed dog through the metal detector.
7. Prepare for arrival. Have a light meal and a small drink roughly two hours before departure (not a full meal), pack any required import paperwork accessibly, and know your connecting airport's pet relief area if your itinerary has layovers.

Cabin vs. Checked Cargo: What's the Difference?

Most airlines split pet travel into two tracks: in-cabin (small pets ride with you) and cargo/checked kennel (larger pets ride in a temperature- and pressure-controlled hold). Here is how they generally compare, based on IATA guidance and Delta's published policy.

Do You Need a Health Certificate or Passport to Fly With a Dog?

It depends entirely on whether your flight is domestic or international, and in which direction. There is no single “dog passport” required for U.S. air travel — the paperwork you need depends on the specific government agency that regulates your route.

Flying Domestically Within the U.S.

Federal law does not require a health certificate for pets flying between U.S. states, though individual airlines often ask to see current rabies vaccination records, and some states have their own interstate movement rules. Always check both your airline's policy and your destination state's requirements before departure.

Flying Internationally — Leaving the U.S. (USDA APHIS)

The United States Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) oversees export paperwork for pets leaving the U.S. Most destinations require APHIS Form 7001, the “United States Interstate and International Certificate of Health Examination for Small Animals,” completed by a USDA-accredited veterinarian — though country-specific certificate forms, where they exist, take priority over the generic 7001. After your vet signs the certificate, it typically needs to be endorsed by a USDA APHIS office; endorsement fees start at $101 per certificate and increase when laboratory test review is required. APHIS does not charge endorsement fees for ADA-recognized service dogs. Always confirm your destination country's specific import rules on the APHIS website before your health exam, since medical steps must often be completed within strict timeframes before departure.

Returning to the U.S. With a Dog (CDC)

Re-entry is a different agency and a different form. The Centers for Disease Control and Prevention (CDC) requires that all dogs entering or returning to the United States appear healthy, be at least 6 months old, be microchipped with a chip readable by a universal scanner, and be accompanied by a CDC Dog Import Form online submission receipt. The microchip must have been implanted before the dog's rabies vaccination, or CDC does not consider that vaccination valid. Requirements are tiered: dogs that spent the prior six months only in countries the CDC classifies as dog rabies-free or low-risk generally need just the CDC Dog Import Form; dogs arriving from high-risk countries face additional rabies certification steps. As of August 2026, USDA export health certificates issued after July 31, 2025 are no longer accepted as proof of U.S.-issued rabies vaccination for CDC import purposes — owners instead need a separate Certification of U.S.-Issued Rabies Vaccination form completed by a USDA-accredited veterinarian before the dog leaves the country.

Rule of thumb: USDA APHIS handles the paperwork for a dog leaving the United States. The CDC handles the paperwork for a dog entering or returning to the United States. They are separate agencies with separate forms, and neither is the same as the European Union's pet passport scheme used for intra-EU travel.

Is “Animal Passport” the Same as a Dog Travel Document?

No — and this distinction matters if you've searched for “animal passport” while researching dog travel. Animal Passport is a digital identity product that uses phone-captured muzzle biometrics — a nose print, which is unique like a human fingerprint — to record an animal's owner, breed, estimated age, and body condition score. It was used during livestock flood rescue efforts in Pakistan in August 2025, helping farmers reclaim animals after paper ear tags were washed away. That is a livestock identity and welfare tool, not a government-issued export certificate, import form, or EU-style pet passport, and it does not replace the USDA APHIS health certificate or CDC Dog Import Form described above. If you're researching general pet identity and health-record tools alongside your travel planning, Animal Passport's blog covers related USDA and pet-ID topics, but for the actual documents your airline and border officials require, USDA APHIS and the CDC remain the authoritative sources.

Getting Through TSA With a Dog

The Transportation Security Administration (TSA) screens pets separately from your carry-on items. Bring your dog to the checkpoint in a hand-held carrier, then remove the dog from the carrier immediately before screening begins and place the empty carrier on the X-ray belt. Your dog should never go through the X-ray tunnel — instead, carry a small dog through the walk-through metal detector, or walk a larger, leashed dog through the screening lane on the ground. A TSA officer will typically swab your hands for an explosive trace detection check. Once screening is complete, return your dog to its carrier away from the checkpoint to avoid disrupting other travelers.

Why Airline Pet Rules Are Getting More Standardized in 2026

Confusion about pet travel rules is common enough that the airline industry is responding directly. IATA released new voluntary Operational Guidelines for In-Cabin Pet Transport on July 15, 2026, giving airlines a shared framework covering booking, check-in, boarding, inflight handling, and connections. The guidelines exist because IATA's 2025 Global Passenger Survey found that among travelers interested in flying with pets, 41% were unsure what qualified their pet for travel, 36% didn't understand airline policies, and 34% were confused about the actual boarding process. The guidance also draws a clear line between ordinary pets, legally recognized service animals, and emotional support animals — which do not carry the same universal legal recognition — a distinction that has caused disputes at airports in recent years.

Airline Pet Fees and Policies at a Glance

Fees and rules change by airline and by year, so always confirm current terms directly with your carrier before booking. As of August 2026, Delta Air Lines' published policy allows a soft-sided in-cabin carrier up to roughly 18 x 11 x 11 inches that fits under the seat, charges $150 each way domestically and $200 each way internationally (for tickets issued April 8, 2025 or later), and operates pet boarding on a first-come, first-served basis with a per-flight cap. Certain Delta destinations — including Hawaii, the United Kingdom, and Australia — do not permit in-cabin pet travel at all, typically because of those countries' own quarantine or import rules layered on top of the airline's policy.

Tips for a Smooth Flight With Your Dog

• Book pet space before your own seat. Cabin pet slots are limited per flight and fill up, especially around holidays.
• Avoid sedatives. IATA discourages sedating pets for air travel because tranquilizers can affect breathing and temperature regulation at altitude — a position shared by veterinary organizations.
• Feed lightly beforehand. IATA recommends a light meal and small drink about two hours before travel, not immediately before boarding.
• Watch temperature restrictions for cargo. Airlines that offer cargo or checked-kennel pet transport commonly pause the service during extreme heat or cold at any airport on the itinerary.
• Start international paperwork weeks in advance. USDA APHIS health exams and endorsements, and CDC-related rabies documentation, often carry strict timing windows before departure — don't leave them until the week of your flight.
• Carry copies of everything. Bring both digital and paper copies of vaccination records, health certificates, and import forms in case an airline agent or border official needs to see them.

Frequently Asked Questions

Can dogs fly in the airplane cabin with you?

Yes, if the dog is small enough to fit in an approved carrier under the seat in front of you and your airline permits in-cabin pets on that route. IATA's baseline rule requires the pet to be at least 8 weeks old and able to stand, turn around, and lie down naturally inside the carrier.

How old does a dog need to be to fly?

IATA's general guidance sets a minimum of 8 weeks old and fully weaned for any air travel. International destinations and some airlines set higher minimums, and dogs returning to the U.S. must be at least 6 months old under CDC rules.

Do I need a health certificate to fly with my dog domestically in the U.S.?

Not by federal law in most cases, though airlines commonly ask for proof of current rabies vaccination, and some states have their own entry rules. Always confirm directly with your airline and destination state before you fly.

What paperwork do I need to bring my dog back into the United States?

The CDC requires the dog to be at least 6 months old, microchipped, appear healthy, and be accompanied by a CDC Dog Import Form online submission receipt; dogs arriving from CDC-designated high-risk rabies countries need additional rabies certification. This is separate from the USDA APHIS paperwork used when the dog originally left the U.S.

Can I sedate my dog before a flight?

It's generally discouraged. IATA and most airlines advise against sedatives and tranquilizers for flying pets because they can suppress breathing and interfere with the body's ability to regulate temperature at altitude.

How much does it cost to fly with a dog?

In-cabin pet fees on major U.S. carriers commonly run $150 each way domestically and up to $200 each way internationally — Delta Air Lines' current published rates, for example, are $150 domestic and $200 international per direction. International trips add separate government costs, such as USDA APHIS endorsement fees starting at $101 per health certificate.

Is a pet passport required to fly a dog within or from the United States?

No. The EU-style pet passport is a European Union travel document used for intra-EU pet movement and is not used for U.S. domestic or international dog travel. U.S. travelers instead use a USDA APHIS health certificate (departing the U.S.) and CDC import documentation (entering or returning to the U.S.).

Is Animal Passport's biometric ID the same thing as a dog's travel health certificate?

No. Animal Passport's muzzle-biometric ID is a digital identity and welfare-record tool built for livestock and general animal identification, not a government-issued export certificate, import form, or airline travel document. Dogs flying internationally still need the USDA APHIS and CDC paperwork described in this guide.