Flight Kansai International Airport departs from Osaka Kansai International Airport at 14:20 and arrives at Tokyo Haneda Airport at 15:35.
The flighttime is about 1h 15m. The distance travelled ("as the bird flies"): 511 Km. So the average speed is roughly 409 Km.
The best day to arrive at Osaka is Tuesday and it would be best to avoid Friday, as prices are on average 129.64% higher than on Tuesday. (Average prices, based on 5969024 datapoints.)
We have a lot more statistics for flights 7G 3824 and between Osaka and Tokyo.