Flight Haneda Airport departs from Tokyo Haneda Airport at 19:10 and arrives at Osaka International Airport at 20:30.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 485 Km. So the average speed is roughly 364 Km.
The best day to arrive at Tokyo is Sunday and it would be best to avoid Tuesday, as prices are on average 103.3% higher than on Sunday. (Average prices, based on 2546416 datapoints.)
We have a lot more statistics for flights JL 139 and between Tokyo and Osaka.
