Flight Melbourne Airport departs from Melbourne Melbourne Airport at 13:20 and arrives at Brisbane Brisbane Airport at 15:30.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 1343 Km. So the average speed is roughly 620 Km.
The best day to arrive at Melbourne is Friday and it would be best to avoid Wednesday, as prices are on average 471.57% higher than on Friday. (Average prices, based on 4311379 datapoints.)
We have a lot more statistics for flights QF 618 and between Melbourne and Brisbane.