Flight Pudong International Airport departs from Shanghai Pudong International Airport at 07:10 and arrives at Hong Kong Hong Kong International Airport at 10:00.
The flighttime is about 2h 50m. The distance travelled ("as the bird flies"): 988 Km. So the average speed is roughly 349 Km.
The best day to arrive at Shanghai is Friday and it would be best to avoid Sunday, as prices are on average 37.04% higher than on Friday. (Average prices, based on 2783457 datapoints.)
We have a lot more statistics for flights CX 5857 and between Shanghai and Hong Kong.