The specific procedures are as follows:
First, apply for quarantine certificate. People in Futian district can go to Meilin office and animal quarantine station. Get rabies vaccine for free, and then issue a certificate (for boarding). It's all free.
Then, buy a cage. It is recommended not to buy aviation cages, but to buy ordinary metal cages. The price is around 80 to 100. The cage is padded with blankets, and the cage is wrapped and tied with old sheets. Just open a few holes for ventilation.
The third step is to pack at the airport and get it for 20 yuan. Feed some water before entering the airport. There is no need to put water in the cage. It's not far from Chengdu.
Step 4, check the carry-on baggage (according to the carry-on baggage, but pay by weight). If my estimation is correct, the cost of flying to Chengdu is about per kilogram 18 yuan. If the dog has 10 kg, plus a cage of 5 kg, forget about 300 yuan. When you check in, you should show your ticket and dog certificate (given at the time of injection, the airport will accept it)
Step 5: When the plane arrives, wait for the dog to come out at the carry-on baggage claim.
Note: you can't get on the plane until seven days after the injection. In addition, most planes have aerobic cabins, but you'd better ask the airlines. Besides, tell the airline in advance that you have a dog to check in, and they will tell you when it is appropriate to go to the airport. As far as the cost is concerned, it does not exceed that of 400 yuan, including cages.
I hope it works for you!