Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 20:05 and arrives at Shanghai Pudong International Airport at 22:45.
The flighttime is about 2h 40m. The distance travelled ("as the bird flies"): 988 Km. So the average speed is roughly 370 Km.
The best day to arrive at Hong Kong is Sunday and it would be best to avoid Saturday, as prices are on average 106.7% higher than on Sunday. (Average prices, based on 11329462 datapoints.)
We have a lot more statistics for flights MU 506 and between Hong Kong and Shanghai.