Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 20:40 and arrives at Shanghai Hongqiao International Airport at 23:20.
The flighttime is about 2h 40m. The distance travelled ("as the bird flies"): 942 Km. So the average speed is roughly 353 Km.
The best day to arrive at Hong Kong is Thursday and it would be best to avoid Wednesday, as prices are on average 206.64% higher than on Thursday. (Average prices, based on 820997 datapoints.)
We have a lot more statistics for flights MU 3904 and between Hong Kong and Shanghai.