How do I get to Hangzhou Xiaoshan Airport from Shanghai?

If I travel from Shanghai to Hangzhou - how then do I get to Xiaoshan Airport? How long does it take in minutes?

My flight is 11.25pm from Xiaoshan Airport. Should I catch the G7327 Shanghai Hongqiao to Hangzhou 20:00 20:45 (0d00h45m)? Will I get to the airport by around 9.30pm?

How far out of Shanghai is Hongqiao? I am staying at the HengSheng Peninsular Hotel in Hongkou District, Shanghai - how long to get to the train station? Thank you