Flight International Airport departs from Osaka International Airport at 14:00 and arrives at Tokyo Haneda Airport at 15:10.
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 Wednesday and it would be best to avoid Monday, as prices are on average 67.27% higher than on Wednesday. (Average prices, based on 2210247 datapoints.)
We have a lot more statistics for flights NH 28 and between Osaka and Tokyo.