There are restrictions on specific breed of dogs as the airlines do not acceptbrachycephalic or snub-nosed dogs of any 'mix' as checked pets, such as:

Dogs must be at least 8 weeks old when traveling within the U.S. and Puerto Rico. If you're traveling into the U.S., your dog's age and vaccine requirements depend on your origin country's rabies risk. Dogs arriving from high-risk countries need to be at least 16 weeks old and have their rabies shots before traveling into the U.S.

To check if your origin is a high-risk country, please visit the U.S. Center for Disease Control.

The Australian Department of Agriculture and Water Resources does not accept applications to import assistance or service animals of any species other than dogs.

An assistance or service dog which is accredited by an Australian State or Territory Government will also qualify. In most cases these animals are returning to Australia.

You cannot travel with a carry-on pet when traveling to Jamaica.

Some airlines do not accept pets as checked baggage for Priority Parcel Service between San Juan (SJU) and St. Kitts (SKB).

When traveling with a pet to Trinidad and Tobago (POS), you cannot arrive on a flight before 8 a.m. or after 4 p.m.

Note: You’ll be responsible for fulfilling all entry requirements and must notify the department of the dog’s intended arrival at least three (3) working days prior to export.

Pets traveling within the U.S. and Puerto Rico must be at least 8 weeks old.

All dogs (carry-on and checked) traveling to the U.S must meet government regulations on vaccinations.

You cannot travel with a carry-on pet when traveling to / from Hawaii.

You can travel with your pet to Hawaii as checked baggage if you:

• Only connect via Honolulu (HNL)*
• Follow Hawaii’s quarantine rules

You cannot travel with your pet to Hawaii:

• On nonstop flights to Maui, the Big Island of Hawaii or Kauai
• If your pet is pregnant and past 45 days gestation

All pets traveling to Mexico must meet government regulations on vaccinations.

You cannot travel with a carry-on pet when traveling to / from:

Argentina

Brazil

Chile

Uruguay

You cannot travel with a carry-on pet when traveling transatlantic.

When traveling to the European Union (EU) with a checked pet, you’ll be responsible for fulfilling all entry requirements. Your pet must have a tattoo or implanted microchip that matches the identification number on their vaccination card.

Apart from service animals, you can't travel with a checked pet to the U.K. or Ireland, but you can transport dogs and cats to London (LHR) and Manchester (MAN) via American Airlines Cargo.

You cannot travel with a carry-on pet when traveling transpacific.

Although, you can travel with a checked pet from Japan to Los Angeles (LAX), pets are not allowed as checked baggage to Japan. According to USDA restrictions, animals should be offered water every 12 hours, so for travel with a checked pet to Los Angeles, you must book a flight less than 11 hours and 30 minutes. This allows time for you to check your pet and clear customs at your destination city.

If you’re traveling with a checked pet for travel from Japan, you’ll need to:

• Make sure your pet has a microchip and documents required by the country you are traveling to
• Notify the Japanese Animal Quarantine Service at least 7 days prior to departure to arrange an inspection