The Beijing Airport Express Train has only four stops: Dongzhimen and Sanyuanqiao in the city , and Terminal 2 and Terminal 3 of the Capital Airport.  A one-way trip takes approximately 15 minutes.

The Airport Express runs in the following sequence: Dongzhimen → Sanyuanqiao → Terminal 3 → Terminal 2 → Sanyuanqiao → Dongzhimen. Riders can transfer to Lines 2 and 13 at Dongzhimen and to Line 10 at Sanyuanqiao.

Most of the 28.1 kilometres (17.5 mi) of tracks are on the surface, except for a 4 kilometres (2.5 mi) segment between Dongzhimen and Sanyuanqiao, several minor crossings underneath existing railways lines, and the terminal connection within the airport.

Fare
Airport to Beijing Downtown  RMB 25 one way
Ticket counter at the airport:
T1: Gate No. 7 (inside) on F1
T2: Gate No. 9 to No.11 (outside) on F1
T3: exit of Zone A, opposite of the exit of Zone C onF2; next to Gate5, 7&11 on F1

How to take Beijing Airport Express Train

Stations	Location	Open hours	Accessible Transfer
Terminal 2	B2 of Parking Garage No. 2	06:35～23:10	---
Terminal 3	F2 of Parking Garage No. 3	06:20～22:50	---
Sanyuanqiao	Sanyuanqiao station, Line 10	06:52～23:27	Subway Line 10
Dongzhimen	Dongzhimen station, Line 2	06:00～22:30	Subway Line 2 and Line 13

More informations
Beijing airport shuttle bus      Beijing airport express train      Beijing subway      Beijing railway service