Flight Sydney Airport departs from Sydney Sydney Airport at 18:00 and arrives at Brisbane Brisbane Airport at 19:30.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 680 Km. So the average speed is roughly 453 Km.
The best day to arrive at Sydney is Monday and it would be best to avoid Sunday, as prices are on average 346.36% higher than on Monday. (Average prices, based on 3853794 datapoints.)
We have a lot more statistics for flights VA 973 and between Sydney and Brisbane.
