Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 13:05 and arrives at Shanghai Hongqiao International Airport at 15:35.
The flighttime is about 2h 30m. The distance travelled ("as the bird flies"): 942 Km. So the average speed is roughly 377 Km.
The best day to arrive at Hong Kong is Saturday and it would be best to avoid Sunday, as prices are on average 203.24% higher than on Saturday. (Average prices, based on 823627 datapoints.)
We have a lot more statistics for flights CX 346 and between Hong Kong and Shanghai.