Flight Narita International Airport departs from Tokyo Narita International Airport at 07:25 and arrives at Osaka Kansai International Airport at 09:00.
The flighttime is about 1h 35m. The distance travelled ("as the bird flies"): 582 Km. So the average speed is roughly 368 Km.
The best day to arrive at Tokyo is Sunday and it would be best to avoid Wednesday, as prices are on average 138.55% higher than on Sunday. (Average prices, based on 3541849 datapoints.)
We have a lot more statistics for flights JL 6001 and between Tokyo and Osaka.