Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 14:25 and arrives at Shanghai Pudong International Airport at 16:50.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 988 Km. So the average speed is roughly 409 Km.
The best day to arrive at Hong Kong is Tuesday and it would be best to avoid Saturday, as prices are on average 171.59% higher than on Tuesday. (Average prices, based on 13008810 datapoints.)
We have a lot more statistics for flights HX 238 and between Hong Kong and Shanghai.