Flight Haneda Airport departs from Tokyo Haneda Airport at 17:25 and arrives at Shanghai Pudong International Airport at 19:45.
The flighttime is about 3h 20m. The distance travelled ("as the bird flies"): 2021 Km. So the average speed is roughly 606 Km.
There is an 1 hour time difference between Tokyo and Shanghai
The best day to arrive at Tokyo is Sunday and it would be best to avoid Friday, as prices are on average 1229.74% higher than on Sunday. (Average prices, based on 608043 datapoints.)
We have a lot more statistics for flights JL 89 and between Tokyo and Shanghai.