1. Airport bus: Xidan Civil Aviation Building takes the airport bus to the airport, and the fare is 16 yuan/person; It is located on the east side of Xidan subway station, on the north side of the road and on the east side of the book building.

2. Subway: Take the subway 1 to Jianguomen Station in Xidan, then transfer to Metro Line 2 to Dongzhimen, and then transfer to Airport Line to Capital International Airport (about 8 minutes to T3, then to T2, less than T 1 to T 1, and then get off at T2 and walk there).

(You can also take the subway 1 line at Xidan, and then transfer to the subway 10 line under Guomao, and then transfer to the special locomotive line. ) Subway fare 2+25=27 yuan.

I personally recommend taking the bus.