Flight Kansai International Airport departs from Osaka Kansai International Airport at 11:00 and arrives at Tokyo Haneda Airport at 12:20.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 511 Km. So the average speed is roughly 383 Km.
The best day to arrive at Osaka is Saturday and it would be best to avoid Wednesday, as prices are on average 273.78% higher than on Saturday. (Average prices, based on 5972327 datapoints.)
We have a lot more statistics for flights 7G 3822 and between Osaka and Tokyo.