Flight Shenzhen Bao'an International Airport departs from Shenzhen Shenzhen Bao'an International Airport at 08:30 and arrives at Osaka Kansai International Airport at 13:00.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 2487 Km. So the average speed is roughly 711 Km.
There is an 1 hour time difference between Shenzhen and Osaka