Flight Kansai International Airport departs from Osaka Kansai International Airport at 22:25 and arrives at Tokyo Narita International Airport at 23:30.
The flighttime is about 1h 05m. The distance travelled ("as the bird flies"): 582 Km. So the average speed is roughly 537 Km.
The best month to arrive at Osaka is September and the most expensive month to fly is June. (Average prices, based on 5839 datapoints.)
The best day to arrive at Osaka is Sunday and it would be best to avoid Saturday, as prices are on average 19.02% higher than on Sunday. (Average prices, based on 8314125 datapoints.)
We have a lot more statistics for flights GA 100 and between Osaka and Tokyo.