Flight King Khaled International Airport departs from Riyadh King Khaled International Airport at 00:30 and arrives at Shenzhen Shenzhen Bao'an International Airport at 14:40.
The flighttime is about 9h 10m. The distance travelled ("as the bird flies"): 7461 Km. So the average speed is roughly 814 Km.
There is an 5 hour time difference between Riyadh and Shenzhen
