Flight Narita International Airport departs from Tokyo Narita International Airport at 14:30 and arrives at Osaka Kansai International Airport at 16:10.
The flighttime is about 1h 40m. The distance travelled ("as the bird flies"): 582 Km. So the average speed is roughly 349 Km.
The best day to arrive at Tokyo is Thursday and it would be best to avoid Tuesday, as prices are on average 366.63% higher than on Thursday. (Average prices, based on 3368220 datapoints.)
We have a lot more statistics for flights JQ 223 and between Tokyo and Osaka.