Flight Sydney Airport departs from Sydney Sydney Airport at 13:45 and arrives at Perth Perth Airport at 16:00.
The flighttime is about 4h 15m. The distance travelled ("as the bird flies"): 3917 Km. So the average speed is roughly 922 Km.
There is an 2 hour time difference between Sydney and Perth
The best day to arrive at Sydney is Thursday and it would be best to avoid Saturday, as prices are on average 35.74% higher than on Thursday. (Average prices, based on 7324239 datapoints.)
We have a lot more statistics for flights VA 559 and between Sydney and Perth.