Can I Bring a Cat on a Plane? Airline Rules, Fees & Documents

Yes, you can bring a cat on a plane. Most major airlines, including Delta, American, and United, allow a cat to travel in the cabin inside an approved carrier that fits under the seat in front of you, for a fee that is typically around $150 each way on U.S. domestic flights as of 2026. You will generally need a veterinary health certificate, an airline reservation for your pet, and — for international trips — destination-specific paperwork such as an EU Animal Health Certificate or pet passport.

This guide walks through what U.S. airlines actually require, how the Transportation Security Administration (TSA) screens pets at the checkpoint, what the U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) says about health documents, and how the International Air Transport Association (IATA) sets the baseline rules airlines build on. It also explains how a legal pet travel document differs from a digital animal identity record like Animal Passport, so you don't confuse the two before you fly.

Key Takeaways

• Most U.S. airlines allow small cats in the cabin in a carrier that fits under the seat, for roughly $150 each way (2026 pricing).
• A veterinary health certificate is usually required, and international travel adds destination-specific rules.
• USDA APHIS has no federal health requirement for importing a pet cat into the U.S., but state and CDC rules can still apply.
• TSA requires cats to be carried through screening by hand while the empty carrier goes through the X-ray separately.
• An EU pet passport is not the same as a U.S. health certificate, and neither is the same as Animal Passport's digital livestock ID.

What U.S. Airlines Actually Require for Cats in the Cabin

Airlines set their own pet policies within the safety framework published by IATA, so the details vary by carrier but follow a similar pattern. In general, a cat flying in the cabin must:

• Be at least 8 weeks old (most U.S. domestic policies) and weaned.
• Travel in an airline-approved, leak-proof carrier that fits fully under the seat in front of the traveler.
• Stay inside the closed carrier for the entire flight, including taxi, takeoff, and landing.
• Be booked as a pet in advance — airlines cap the number of pets per cabin, so you usually cannot add one at the gate.
• Travel with a working health certificate if the airline or destination requires one.

According to IATA's own guidance for passengers traveling with a cat in the cabin, "most airlines require a health certificate for any animal they are transporting, whether in the cabin or as an unaccompanied shipment," and individual carriers may layer on additional or stricter rules, so the specific airline should always be consulted directly before booking (IATA, 2026).

Airline Cat Policies Compared (2026)

The table below summarizes published in-cabin cat policies for three major U.S. carriers. Fees and dimensions change periodically, so confirm current terms on the airline's own site before you fly.

Delta's official pet travel page confirms the $150 each-way domestic fee took effect for tickets issued on or after April 8, 2025, with a $200 fee for international itineraries and carrier ventilation requirements that increase from three sides for domestic flights to four sides for international flights (Delta Air Lines, 2026). Because pet fees and size limits are not standardized across the industry, always verify directly with the airline you are booking, since even close competitors set slightly different weight and dimension caps.

Health Certificates and USDA APHIS Rules

For domestic U.S. flights, most airlines ask for a veterinary health certificate confirming your cat is fit to travel, issued within a short window before departure. Requirements differ by airline, so check the exact validity period with your carrier when you book.

For international travel, the rules depend heavily on where the cat is going and where it is coming from. On its own site, USDA APHIS states plainly: "APHIS Veterinary Services does not have any animal health requirements related to bringing (importing) a pet cat into the United States from a foreign country" (USDA APHIS, accessed September 2026). That means there is no blanket federal vaccination or paperwork mandate from APHIS itself for cats entering the U.S. — a notably different rule than for dogs. However, APHIS's own pet travel pages direct owners to also check with the Centers for Disease Control and Prevention (CDC) and the destination state's department of agriculture, since state-level import rules and CDC requirements can still apply even when APHIS has none.

USDA APHIS also maintains a dedicated "Pets on Planes" training resource aimed at helping pet owners and airport personnel understand how to keep cats and dogs safe during air travel, reflecting the agency's broader air-travel safety guidance beyond strict import paperwork (USDA APHIS, last updated March 2026).

Flying Internationally With a Cat

Traveling Within the European Union

The European Union's official Your Europe portal explains that pet cats moving within the EU need three things: a microchip meeting EU technical standards (or a pre-2011 tattoo), a rabies vaccination given after the cat is at least 12 weeks old, and a valid EU pet passport recording the animal's identification and vaccination history (European Union, 2026). Critically, the EU pet passport is "only issued to pet owners who are resident in the EU" — travelers from outside the EU need an EU Animal Health Certificate (AHC) instead, which serves a similar purpose but is not the same lifelong document as a passport.

Entering the United States

As noted above, USDA APHIS imposes no federal health requirement specifically for pet cats entering the U.S. from abroad. That said, airlines still enforce their own carrier, age, and sometimes rabies-vaccination rules for international itineraries, and the destination state may require its own health certificate. Always check both the airline's international pet policy and APHIS's country-specific export pages if you are traveling from the U.S. to another country, since export requirements are set by the destination, not by APHIS.

Getting Through TSA Airport Security With a Cat

Airline booking is only half the process — you also need to clear the security checkpoint. The Transportation Security Administration outlines the following steps for traveling with a cat:

1. Bring your cat to the checkpoint in a hand-held carrier.
2. Remove your cat from the carrier just before screening begins.
3. Send the empty carrier through the X-ray machine — never place your cat in the X-ray tunnel.
4. Carry your cat through the walk-through metal detector, or walk your leashed cat through if you prefer not to carry it.
5. Allow a TSA officer to swab your hands for explosive trace detection.
6. Reunite with your cat and repack the carrier at the recomposure area away from the checkpoint.

TSA notes that "the final decision rests with the TSA officer on whether an item is allowed through the checkpoint," and that especially skittish pets may be moved to a private screening room (TSA, 2026). TSA also directs travelers to check with their airline separately, since TSA controls security screening but not whether a given airline accepts pets in the cabin.

Why Airline Pet Rules Look Similar Worldwide: IATA's Role

Individual airlines set their own pet policies, but most build on the International Air Transport Association's Live Animals Regulations (LAR), the global reference standard for transporting animals by air. IATA's guidance sets baseline rules such as a minimum age of 8 weeks and confirmation that the animal is weaned, container specifications (for cats, cabin carrier openings must be no larger than 19 mm x 19 mm and fully nose- and paw-proof), and a recommendation against sedating pets for travel, a position that aligns with veterinary organizations such as the American Veterinary Medical Association (IATA, 2026). This is why carrier size limits and age minimums look broadly similar across Delta, American, and United, even though each airline publishes its own specific numbers.

Cat Travel Documents vs. Digital Animal ID: Don't Confuse the Two

It's worth being precise about terminology here, because "pet passport" and "animal passport" get used loosely online. The EU pet passport and the USDA-issued international health certificate described above are official, government-recognized travel documents required (or accepted) by specific countries and airlines. Nothing in this article should be read as legal or veterinary advice — always confirm current requirements with the relevant government agency or your veterinarian before you fly.

Animal Passport is a different kind of product: a phone-based digital identity record that uses muzzle biometrics — a cat's or livestock animal's nose print, which is unique like a human fingerprint — to bind an owner's record to that individual animal, along with breed, an estimated age from a dental photograph, a body condition score from a side-profile photo, and vaccination history. It was used during livestock flood rescue efforts in Pakistan in August 2025, helping farmers reclaim animals after paper ear tags were washed away. Animal Passport is not a government-issued travel document, is not a substitute for an EU pet passport or a USDA/APHIS health certificate, and does not replace veterinary diagnosis. If your goal is flying with your cat, follow the airline, TSA, and USDA APHIS or destination-country guidance above. If you're interested in how biometric animal identification is being used for livestock recovery and recordkeeping more broadly, the Animal Passport blog covers that separate use case.

Frequently Asked Questions

Can I bring a cat on a plane in the cabin?

Yes. Most major U.S. airlines, including Delta, American, and United, allow a cat to travel in the cabin inside an approved carrier that fits under the seat in front of you, for an additional fee.

How much does it cost to fly with a cat in 2026?

On U.S. domestic flights, Delta, American, and United each charge roughly $150 each way to bring a cat in the cabin as of 2026; international fees can be higher, and policies change, so confirm the current fee when you book.

Do cats need a health certificate to fly?

Most airlines require a veterinary health certificate for domestic flights, and international trips often add destination-specific paperwork; IATA notes that most airlines require a health certificate for any animal they transport, in the cabin or otherwise.

Can my cat go through the TSA X-ray machine?

No. TSA requires you to remove your cat from its carrier and carry (or walk) it through the metal detector separately, while the empty carrier goes through the X-ray machine on its own.

What size carrier do I need for a cat on a plane?

Most U.S. airlines cap soft-sided in-cabin carriers around 18" x 11" x 11", and the carrier must fit fully under the seat in front of you; exact limits vary slightly by airline, so check before buying a carrier.

Do I need an EU pet passport to fly with my cat to Europe?

Only if you are a resident of the EU. Non-EU residents typically need an EU Animal Health Certificate instead, along with proof of microchipping and rabies vaccination given after 12 weeks of age.

Is there an age minimum for cats to fly?

Yes. Most U.S. airlines and IATA guidance set a minimum age of 8 weeks for domestic travel, with older minimums — often 16 weeks — for international itineraries.

Can I sedate my cat for a flight?

It isn't recommended. IATA advises against sedating or tranquilizing pets for air travel due to health risks, a position shared by veterinary organizations such as the American Veterinary Medical Association.