Flight Kansai International Airport departs from Osaka Kansai International Airport at 15:25 and arrives at Changsha Huanghua International Airport at 18:35.
The flighttime is about 4h 10m. The distance travelled ("as the bird flies"): 2477 Km. So the average speed is roughly 594 Km.
There is an 1 hour time difference between Osaka and Changsha
