Flight Melbourne Airport departs from Melbourne Melbourne Airport at 20:20 and arrives at Brisbane Brisbane Airport at 22:30.
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 Wednesday and it would be best to avoid Tuesday, as prices are on average 86.24% higher than on Wednesday. (Average prices, based on 4320887 datapoints.)
We have a lot more statistics for flights QF 636 and between Melbourne and Brisbane.