Flight Fukuoka Airport departs from Fukuoka Fukuoka Airport at 10:05 and arrives at Tokyo Haneda Airport at 11:40.
The flighttime is about 1h 35m. The distance travelled ("as the bird flies"): 1048 Km. So the average speed is roughly 662 Km.
The best day to arrive at Fukuoka is Wednesday and it would be best to avoid Sunday, as prices are on average 291.68% higher than on Wednesday. (Average prices, based on 496752 datapoints.)
We have a lot more statistics for flights JL 308 and between Fukuoka and Tokyo.