Flight Pudong International Airport departs from Shanghai Pudong International Airport at 11:55 and arrives at Hong Kong Hong Kong International Airport at 14:45.
The flighttime is about 2h 50m. The distance travelled ("as the bird flies"): 988 Km. So the average speed is roughly 349 Km.
The best day to arrive at Shanghai is Friday and it would be best to avoid Wednesday, as prices are on average 74.67% higher than on Friday. (Average prices, based on 3381930 datapoints.)
We have a lot more statistics for flights HX 237 and between Shanghai and Hong Kong.