Flight Melbourne Airport departs from Melbourne Melbourne Airport at 16:05 and arrives at Brisbane Brisbane Airport at 18:15.
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 Monday and it would be best to avoid Saturday, as prices are on average 220.08% higher than on Monday. (Average prices, based on 4329908 datapoints.)
We have a lot more statistics for flights ZL 258 and between Melbourne and Brisbane.