Best way from Pengpuxincun to Shanghai Pudong Airport?

Generally speaking, you need to arrive at the airport 2 hours in advance.
About the transportation, you can take metro line 1 from Pengpuxincun to People's Square Station. Then transfer to line 2 to the airport. The whole way takes around 85 mins. And it costs CNY 8 per person. Besides, the first schedule of line 1 is at around 05:47. Thus you'd better to catch the first metro in the early morning. :)