Flight Brisbane Airport departs from Brisbane Brisbane Airport at 11:05 and arrives at Sydney Sydney Airport at 12:40.
The flighttime is about 1h 35m. The distance travelled ("as the bird flies"): 680 Km. So the average speed is roughly 429 Km.
The best day to arrive at Brisbane is Saturday and it would be best to avoid Wednesday, as prices are on average 124.5% higher than on Saturday. (Average prices, based on 5479361 datapoints.)
We have a lot more statistics for flights VA 942 and between Brisbane and Sydney.