Flight International Airport departs from Osaka International Airport at 13:30 and arrives at Tokyo Haneda Airport at 14:40.
The flighttime is about 1h 10m. The distance travelled ("as the bird flies"): 485 Km. So the average speed is roughly 416 Km.
The best day to arrive at Osaka is Tuesday and it would be best to avoid Friday, as prices are on average 56.37% higher than on Tuesday. (Average prices, based on 1924927 datapoints.)
We have a lot more statistics for flights JL 118 and between Osaka and Tokyo.