Flight Sydney Airport departs from Sydney Sydney Airport at 12:00 and arrives at Brisbane Brisbane Airport at 13:30.
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 Wednesday and it would be best to avoid Friday, as prices are on average 39.67% higher than on Wednesday. (Average prices, based on 2699296 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 159 datapoints.)
We have a lot more statistics for flights VA 939 and between Sydney and Brisbane.