You should have a health certificate and a vaccine certificate, buy an aviation cage and bring all your dog's certificates with you. My friend said that the longer the plane takes, the less safe the dog is. I have been to Australia and my brother is still studying there. It takes me two hours to fly from Hangzhou to Hong Kong and nine hours to fly from Hong Kong to Sydney. It will be harder for dogs. It's best not to take it with you. suffer ...