Flight Fukuoka Airport departs from Fukuoka Fukuoka Airport at 09:00 and arrives at Nankoku Kochi Airport at 09:50.
The flighttime is about 9h 50m. The distance travelled ("as the bird flies"): 359 Km. So the average speed is roughly 37 Km.
There is an 9 hour time difference between Fukuoka and Nankoku