Flight Pudong International Airport departs from Shanghai Pudong International Airport at 07:35 and arrives at Hong Kong Hong Kong International Airport at 10:15.
The flighttime is about 2h 40m. The distance travelled ("as the bird flies"): 988 Km. So the average speed is roughly 370 Km.
The best day to arrive at Shanghai is Wednesday and it would be best to avoid Saturday, as prices are on average 177.05% higher than on Wednesday. (Average prices, based on 2792841 datapoints.)
We have a lot more statistics for flights HX 231 and between Shanghai and Hong Kong.