Flight Pudong International Airport departs from Shanghai Pudong International Airport at 11:40 and arrives at Tokyo Narita International Airport at 15:55.
The flighttime is about 3h 15m. The distance travelled ("as the bird flies"): 2092 Km. So the average speed is roughly 644 Km.
There is an 1 hour time difference between Shanghai and Tokyo
The best day to arrive at Shanghai is Friday and it would be best to avoid Saturday, as prices are on average 456.75% higher than on Friday. (Average prices, based on 104530 datapoints.)
We have a lot more statistics for flights MU 521 and between Shanghai and Tokyo.