Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 12:30 and arrives at Shanghai Hongqiao International Airport at 14:55.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 942 Km. So the average speed is roughly 390 Km.
The best day to arrive at Hong Kong is Tuesday and it would be best to avoid Wednesday, as prices are on average 130.85% higher than on Tuesday. (Average prices, based on 824226 datapoints.)
We have a lot more statistics for flights HX 248 and between Hong Kong and Shanghai.