Flight Oita Airport departs from Oita Oita Airport at 12:20 and arrives at Tokyo Haneda Airport at 13:50.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 908 Km. So the average speed is roughly 605 Km.
The best day to arrive at Oita is Wednesday and it would be best to avoid Tuesday, as prices are on average 40.97% higher than on Wednesday. (Average prices, based on 51518 datapoints.)
We have a lot more statistics for flights JL 668 and between Oita and Tokyo.