Flight Fukuoka Airport departs from Fukuoka Fukuoka Airport at 15:00 and arrives at Tokyo Haneda Airport at 16:45.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 1048 Km. So the average speed is roughly 599 Km.
The best day to arrive at Fukuoka is Wednesday and it would be best to avoid Sunday, as prices are on average 239.34% higher than on Wednesday. (Average prices, based on 489585 datapoints.)
We have a lot more statistics for flights JL 318 and between Fukuoka and Tokyo.