Flight Guangzhou Baiyun International Airport departs from Guangzhou Guangzhou Baiyun International Airport at 22:15 and arrives at Adelaide Adelaide Airport at 08:40.
The flighttime is about 8h 55m. The distance travelled ("as the bird flies"): 4470 Km. So the average speed is roughly 501 Km.
There is an 1.5 hour time difference between Guangzhou and Adelaide