Flight Sydney Airport departs from Sydney Sydney Airport at 19:40 and arrives at Brisbane Brisbane Airport at 20:10.
The flighttime is about 0h 30m. The distance travelled ("as the bird flies"): 680 Km. So the average speed is roughly 1360 Km.
The best day to arrive at Sydney is Monday and it would be best to avoid Thursday, as prices are on average 293.59% higher than on Monday. (Average prices, based on 3856159 datapoints.)
We have a lot more statistics for flights QF 550 and between Sydney and Brisbane.
