Flight Narita International Airport departs from Tokyo Narita International Airport at 12:35 and arrives at Osaka Kansai International Airport at 14:20.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 582 Km. So the average speed is roughly 333 Km.
The best day to arrive at Tokyo is Tuesday and it would be best to avoid Thursday, as prices are on average 742.31% higher than on Tuesday. (Average prices, based on 3537313 datapoints.)
We have a lot more statistics for flights JQ 213 and between Tokyo and Osaka.