Flight International Airport departs from Osaka International Airport at 07:25 and arrives at Tokyo Haneda Airport at 08:40.
The flighttime is about 1h 15m. The distance travelled ("as the bird flies"): 485 Km. So the average speed is roughly 388 Km.
The best day to arrive at Osaka is Friday and it would be best to avoid Thursday, as prices are on average 102.68% higher than on Friday. (Average prices, based on 1885330 datapoints.)
We have a lot more statistics for flights GA 9171 and between Osaka and Tokyo.