Flight Shenzhen Bao'an International Airport departs from Shenzhen Shenzhen Bao'an International Airport at 18:00 and arrives at Riyadh King Khaled International Airport at 22:30.
The flighttime is about 9h 30m. The distance travelled ("as the bird flies"): 7461 Km. So the average speed is roughly 785 Km.
There is an 5 hour time difference between Shenzhen and Riyadh