Flight Narita International Airport departs from Tokyo Narita International Airport at 14:15 and arrives at Shanghai Pudong International Airport at 17:00.
The flighttime is about 3h 45m. The distance travelled ("as the bird flies"): 2092 Km. So the average speed is roughly 558 Km.
There is an 1 hour time difference between Tokyo and Shanghai
The best day to arrive at Tokyo is Monday and it would be best to avoid Saturday, as prices are on average 177.08% higher than on Monday. (Average prices, based on 164289 datapoints.)
We have a lot more statistics for flights CZ 8310 and between Tokyo and Shanghai.