Flight Pudong International Airport departs from Shanghai Pudong International Airport at 11:45 and arrives at Hong Kong Hong Kong International Airport at 14:55.
The flighttime is about 3h 10m. The distance travelled ("as the bird flies"): 988 Km. So the average speed is roughly 312 Km.
The best day to arrive at Shanghai is Thursday and it would be best to avoid Saturday, as prices are on average 164.87% higher than on Thursday. (Average prices, based on 2791067 datapoints.)
We have a lot more statistics for flights MU 503 and between Shanghai and Hong Kong.