China is currently going on an airport-building spree, with almost 200 currently in use. That being said the smaller airports often have very limited services. Most international flights fly in via one of the first-tier city airports, although increasingly more fly to 2nd and 3rd tier cities. The domestic network is also well-developed, with thousands of different routes available and aking a domestic flight isn’t really any different than taking a flight anywhere else in the world. For longer distances in China, taking a flight is usually recommended over taking the high-speed train.