Flight Tan Son Nhat International Airport departs from Ho Chi Minh City Tan Son Nhat International Airport at 00:15 and arrives at Fukuoka Fukuoka Airport at 07:35.
The flighttime is about 5h 20m. The distance travelled ("as the bird flies"): 2866 Km. So the average speed is roughly 537 Km.
There is an 2 hour time difference between Ho Chi Minh City and Fukuoka