Flight Sydney Airport departs from Sydney Sydney Airport at 19:30 and arrives at Cairns Cairns Airport at 22:45.
The flighttime is about 3h 15m. The distance travelled ("as the bird flies"): 1723 Km. So the average speed is roughly 530 Km.
The best day to arrive at Sydney is Monday and it would be best to avoid Friday, as prices are on average 218.9% higher than on Monday. (Average prices, based on 176162 datapoints.)
We have a lot more statistics for flights VA 1429 and between Sydney and Cairns.