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 Saturday and it would be best to avoid Tuesday, as prices are on average 36.67% higher than on Saturday. (Average prices, based on 2782592 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 101 datapoints.)
We have a lot more statistics for flights HX 231 and between Shanghai and Hong Kong.