How to divide the airline? Planes of different airlines usually take off at the same airport. Let's talk about other relevant information. Don't copy

Alas, your question is really speechless. Idle is idle, let me give you some code.

There are many airlines in China and more in the world. The domestic mainstream is Air China, China Eastern Airlines, China Southern Airlines, Hainan Airlines, Shandong Airlines, Sichuan Airlines, Chongqing Airlines, Xiamen Airlines, Western Airlines, Xiang Peng Airlines, Capital Airlines, etc. These are state-owned enterprises and private enterprises such as Chunqiu and Okay. The difference depends on the code and the fuselage logo.

Airlines have their own base, so flying from the base to the destination is usually round trip. What else do you want to know?