Flight Sydney Airport departs from Sydney Sydney Airport at 14:05 and arrives at Hong Kong Hong Kong International Airport at 21:30.
The flighttime is about 9h 25m. The distance travelled ("as the bird flies"): 5599 Km. So the average speed is roughly 595 Km.
There is an 2 hour time difference between Sydney and Hong Kong
The best day to arrive at Sydney is Wednesday and it would be best to avoid Tuesday, as prices are on average 48.34% higher than on Wednesday. (Average prices, based on 27004 datapoints.)
We have a lot more statistics for flights CX 100 and between Sydney and Hong Kong.