American Airlines Pet Flights: Cabin Fees, Checked Limits, and Cargo Rules

As of September 2026, American Airlines pet flights generally mean one of three options: a small cat or dog in an approved under-seat carry-on kennel for $150 per kennel each way on eligible routes; a checked pet limited to active-duty U.S. Military and U.S. State Department Foreign Service personnel on official orders; or American Airlines Cargo’s American PetEmbark® service for animals that do not qualify as cabin or checked pets. American Airlines pet flights are the carrier’s published rules for transporting household pets on passenger and cargo itineraries, including fees, kennel limits, destination bans, and temperature embargoes.

This guide answers the practical questions travelers ask before booking—fees, carrier sizes, who can check a pet, cargo rules, and U.S. entry paperwork—using American Airlines, the U.S. Centers for Disease Control and Prevention (CDC), and the United States Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) as named sources. It also distinguishes airline and government travel documents from Animal Passport, a digital livestock-identity product that is not an airline pet pass and not a government-issued travel document.

How American Airlines pet flights work

American Airlines states that, depending on breed and size, pets can travel as a carry-on or be transported through American Airlines Cargo. Carry-on pets are limited to cats and dogs that meet size, age, and destination requirements. Fully trained service dogs may fly in the cabin at no charge if they meet the airline’s requirements, according to American Airlines’ Traveling with pets page.

Checked pets at the ticket counter are not a general option for civilians. American Airlines says it only accepts checked pets for active-duty U.S. Military and U.S. State Department Foreign Service personnel traveling on official orders, with fees and restrictions. If a pet is too large for the cabin and the traveler does not qualify for checked-pet status, the animal must use American Airlines Cargo / PetEmbark.

Eligible cabin destinations (and hard no-go routes)

As of September 2026, American Airlines lists carry-on pet travel on most flights up to 12 hours, or to and from select locations, including within the 48 contiguous United States, the U.S. and Canada (with possible special restrictions), Alaska, Mexico (with possible special restrictions), Puerto Rico, St. Croix, and St. Thomas.

American Airlines also publishes destination bans that trip many travelers:

• No carry-on pets to or from Hawaii.
• No carry-on pets on trans-Atlantic or trans-Pacific trips.
• No carry-on pets to or from Argentina, Brazil, Chile, Colombia, or Uruguay.
• No carry-on pets when traveling to Jamaica.
• For Trinidad and Tobago (POS), pets cannot arrive on a flight before 8 a.m. or after 4 p.m.

For Hawaii, American Airlines allows checked pets only under narrow conditions (including connecting via Honolulu and following Hawaii quarantine rules) and does not accept pets on nonstop flights to Maui, the Big Island of Hawaii, or Kauai. American Airlines Cargo separately notes Honolulu (HNL) as its port of entry for animals and states pets traveling to Hawaii may face quarantine of up to 120 days—travelers should confirm current Hawaii Agriculture rules before booking.

American Airlines pet fees in 2026

American Airlines’ published pet fee table and its Bag and optional fees page both list a carry-on pet fee of $150 per kennel for travel within and between the United States and Canada, Mexico, Central America, and the Caribbean when the destination country’s entry rules allow it. The same sources list checked-pet fees of $200 per kennel for qualifying military and State Department travelers on most listed regions, and $150 per kennel to or from Brazil. Service animals are listed at no charge. Cargo pet fees vary and are confirmed at booking.

American Airlines states that pet fees are nonrefundable, apply per kennel each way, and that a stopover or connection of 4 hours or more can trigger fees for each connection segment. Payment is at the airport or a travel center by credit card or accepted paper voucher; cash and checks are not accepted. Fees for partner-operated flights are not collected by American even when the ticket shows an American flight number—travelers must check in with each operating airline.

Carry-on pet carrier sizes and cabin limits

American Airlines requires the pet to stay in the carrier under the seat for the entire flight. Soft-sided collapsible kennels are recommended. Published maximum dimensions from American Airlines are:

• Soft-sided (all flights): 18 x 11 x 11 inches (46 x 28 x 28 cm)
• Hard-sided (American mainline): 19 x 13 x 9 inches (48 x 33 x 22 cm)
• Hard-sided (American Eagle): 16 x 12 x 8 inches (40 x 30 x 20 cm)

Pets must fit comfortably inside a closed or zipped carrier. Non-collapsible kennels cannot exceed under-seat dimensions on any aircraft in the journey. With a pet carrier, travelers may bring only one additional item—either a personal item or a standard carry-on—not both. Pet strollers must be checked as bags.

Cabin pet capacity varies by aircraft. American Airlines lists a maximum of 20 pet carriers across all cabins on many mainline types (excluding service animals), while some premium cabins on widebodies have no under-seat storage and therefore ban carry-on pets. American Eagle regional jets are much tighter—often a maximum of 1 pet carrier in premium and 5 in Main Cabin. Carry-on pets are not permitted in bulkhead seats, exit rows, and certain First/Business seats on B777 and B787 aircraft, among other FAA or storage-related seat bans listed by American Airlines.

On the three-cabin Airbus A321T, American Airlines states First and Business passengers must place the carrier in a dedicated animal-friendly compartment, and the combined weight of pet and carrier must not exceed 20 pounds (9.07 kilograms) at check-in.

Checked pets and cargo: what civilians need to know

For checked pets, American Airlines requires contacting Reservations at least 48 hours before travel, presenting official orders, allowing at least 2 hours (and no more than 4 hours) for check-in, completing an agent checklist, and providing a health certificate. American Airlines says the health certificate must be issued by a veterinarian within 10 days of travel; for return travel on the same ticket, within 60 days of return; and for return on a separate ticket, within 10 days of return.

USDA APHIS’s Pets on Planes guidance (last modified January 25, 2026) similarly states that a Health and Acclimation certificate must be signed by a licensed veterinarian within 10 days of the animal’s travel date for air travel readiness documentation. USDA regulations require dogs and cats to be at least 8 weeks old and fully weaned before traveling, according to USDA APHIS.

American Airlines Cargo’s Policies & Restrictions page describes domestic Priority Parcel Service (PPS) for pets flying within the continental U.S., Puerto Rico, or into Hawaii when the combined pet-and-kennel weight is under 100 pounds and the kennel is no larger than 36L x 26W x 28H inches. International itineraries, outbound Hawaii, or shipments exceeding those limits use ExpediteFS. An additional $150 handling fee per air waybill applies to Animals rates, according to American Airlines Cargo.

Both American Airlines passenger and Cargo pages refuse sedated or tranquilized household dogs and cats, citing American Veterinary Medical Association (AVMA) guidance on altitude-related respiratory and cardiovascular risk. Brachycephalic (short-nosed) dog and cat breeds and mixes are barred as checked/cargo pets; American Airlines publishes breed lists including bulldogs, pugs, boxers, and several others for dogs, and Burmese, Persian, Himalayan, and Exotic Shorthair for cats.

Temperature embargoes

American Airlines says checked pets and cargo pets cannot travel if the current or forecast temperature is above 85°F (29.4°C) at any location on the itinerary, or if ground temperature is below 45°F (7.2°C). Pets not traveling in the cabin cannot travel to, through, or from Phoenix (PHX), Tucson (TUS), Las Vegas (LAS), or Palm Springs (PSP) from May 1 through September 30. Below 20°F (−6.6°C), American Airlines says a pet cannot be checked even with a veterinary acclimation letter. American Airlines Cargo states warm-blooded animals are transported when ground temperatures are between 45°F and 85°F, with a veterinary acclimation letter required for 20–44°F.

CDC and USDA paperwork for U.S. entry and export

Airline rules sit on top of government rules. For dogs entering or returning to the United States, the CDC sets importation requirements that apply to all dogs, including service dogs and returning pets, regardless of citizenship—American Airlines explicitly points travelers to CDC rules.

As of the CDC’s August 27, 2026 FAQ update, all dogs entering or returning to the U.S. need a CDC Dog Import Form receipt. Dogs that have been only in dog rabies-free or low-risk countries for the last 6 months still must appear healthy, have a microchip readable by a universal scanner, and be at least 6 months of age. Dogs that have been in high-risk countries need additional rabies documentation and, for many foreign-vaccinated dogs, a reservation at a CDC-registered animal care facility. The CDC Dog Import Form instructions page (updated April 28, 2026) notes a February 5, 2026 web-system update that changed receipt formatting without changing importation requirements.

American Airlines states it does not accept dogs as carry-on pets if they originate from or have visited a high-risk rabies country in the six months before travel (service dogs that meet CDC requirements are excepted from that airline embargo). On age, sources do not fully align: American Airlines says dogs arriving from high-risk countries need to be at least 16 weeks old with rabies shots before entering the U.S., while the CDC FAQ requires dogs to be at least 6 months old for U.S. entry. Travelers should follow the stricter CDC age rule for U.S. entry and confirm any airline overlay with American Airlines before flying.

For exporting a pet from the United States, USDA APHIS’s Pet Travel Process Overview (last modified June 18, 2026) advises contacting a USDA-accredited veterinarian as soon as travel is planned, verifying destination-country requirements every trip, and obtaining USDA endorsement of health certificates when the destination requires it. The original USDA-endorsed hard-copy certificate must accompany the pet; electronic copies alone are not accepted by destination officials, according to USDA APHIS. Airlines may impose additional requirements beyond USDA paperwork.

Mexico is a current example of layered rules: American Airlines states dogs traveling to Mexico need a New World Screwworm (NWS) Inspection Certificate completed by a USDA-accredited veterinarian within 5 days before entry, including for service dogs, verified at check-in.

Step-by-step: booking an American Airlines cabin pet

1. Confirm the route allows carry-on pets (especially Hawaii, South America, Jamaica, and long-haul Atlantic/Pacific bans).
2. Measure your soft- or hard-sided carrier against American Airlines’ published dimensions and your aircraft type.
3. Add the pet in aa.com or the American app under Additional Services → Add carry-on pets, then select flights.
4. At the airport ticket counter, pay the $150 fee and have staff verify the pet and kennel.
5. If entering the U.S. with a dog, complete the CDC Dog Import Form in advance and bring the receipt plus any high-risk rabies documents.
6. If exporting internationally, work with a USDA-accredited veterinarian early for vaccinations, tests, and USDA endorsement timelines.

Animal Passport vs. airline and government pet travel documents

Search results for pet flights often mix airline kennel rules with “pet passports.” Those are different systems. EU pet passports, the UK Pet Travel Scheme (PETS), USDA-endorsed health certificates, and the CDC Dog Import Form are official or airline-required travel documents. Animal Passport is a separate digital animal and livestock identity product: it uses muzzle biometrics (a nose print that is unique like a fingerprint), phone-based capture, and a record that binds owner, breed, estimated age, body condition, and vaccination history. Age can be estimated from a dental photograph with a confidence score, and body condition is scored 1–5 from a side-profile photo.

In August 2025, Animal Passport was used in livestock flood rescue in Pakistan so farmers could reclaim animals when paper tags washed away. That field use is about durable identity after disaster—not boarding an American Airlines flight. For travel planning tips beyond airline FAQs, see Animal Passport’s blogs. Do not present an Animal Passport digital record as a substitute for CDC, USDA APHIS, destination-country, or American Airlines acceptance documents.

Practical takeaways for travelers

Book early when cabin pet slots are limited by aircraft. Prefer soft-sided carriers that fit under the seat without forcing the kennel to collapse. Never rely on sedation. For summer itineraries through desert hubs, cabin travel may be the only viable option when cargo and checked pets are temperature-blocked. Always re-check American Airlines’ Traveling with pets page and CDC/USDA pages shortly before departure, because fees, embargoes, and import forms change.

Last updated September 2026 by Animal Passport. Rules cited from American Airlines, American Airlines Cargo, CDC, and USDA APHIS primary pages opened for this article; verify live airline and government pages before travel. This article is informational and is not veterinary diagnosis or legal advice.