Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 15:55 and arrives at Shanghai Hongqiao International Airport at 19:00.
The flighttime is about 3h 05m. The distance travelled ("as the bird flies"): 942 Km. So the average speed is roughly 306 Km.
The best day to arrive at Hong Kong is Monday and it would be best to avoid Saturday, as prices are on average 152% higher than on Monday. (Average prices, based on 821015 datapoints.)
We have a lot more statistics for flights FM 3018 and between Hong Kong and Shanghai.