Answered by Bob
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May. 27, 2016 04:39
As I know, you cannot buy the transportation card at PEK. But the card is available at all metro stations. So, you can take Airport Express Line to Sanyuanqiao or Dongzhimen Station, and then buy the card there. The first train of Airport Express departs at 6:22 from T3, and 6:36 from T2 by the way. The opening hours of the ticketing windows are the same as the metro operating hours.