The cost of air transporting a cat varies depending on several factors, including but not limited to the cat's weight, the type of carrier chosen, the route, the airline, and whether additional services such as insurance are required. Generally, the cost of air transporting a cat includes the following aspects:

Pet carrier fees: Depending on the cat's weight and size, different sizes of airline carriers may be required. For example, cats weighing under 5kg typically use a size 1 airline carrier, while cats weighing 6-8kg use a size 2 airline carrier. Larger airline carriers may cost around 300 yuan.
Quarantine fees: generally between 100 and 200 yuan. This is mandatory to ensure the cat's health and compliance with air transport requirements.
Domestic air freight costs: The cost is usually calculated based on the cat's weight, averaging about 20-45 yuan per kilogram. However, some airlines may have fixed charges. For example, Air China's pet air freight fee is generally 25 yuan/kg, but may be 30 yuan/kg for cities in Northeast and Northwest China.