Flight Brisbane Airport departs from Brisbane Brisbane Airport at 08:15 and arrives at Sydney Sydney Airport at 09:50.
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 Tuesday and it would be best to avoid Thursday, as prices are on average 199.13% higher than on Tuesday. (Average prices, based on 5426036 datapoints.)
We have a lot more statistics for flights JQ 813 and between Brisbane and Sydney.