Air China, Shandong Airlines, Sichuan Airlines, Shanghai Airlines and Northeast Airlines are in Terminal 3.

HNA, Grand China Airlines, Tianhang, Jin Lu Airlines and other companies under HNA Group are in the 1 terminal.

Other airlines, including China Southern Airlines, China Eastern Airlines, Shenzhen Airlines, Chongqing and Xiamen, are all in Terminal 2.

You just need to remember the distribution of terminal buildings, so the flight you asked 18 15 is in Terminal 3.