Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 09:30 and arrives at Shanghai Pudong International Airport at 12:05.
The flighttime is about 2h 35m. The distance travelled ("as the bird flies"): 988 Km. So the average speed is roughly 382 Km.
The best day to arrive at Hong Kong is Tuesday and it would be best to avoid Friday, as prices are on average 144% higher than on Tuesday. (Average prices, based on 11354291 datapoints.)
We have a lot more statistics for flights CX 348 and between Hong Kong and Shanghai.