Flight Brisbane Airport departs from Brisbane Brisbane Airport at 07:55 and arrives at Melbourne Melbourne Airport at 10:20.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 1343 Km. So the average speed is roughly 556 Km.
The best day to arrive at Brisbane is Wednesday and it would be best to avoid Friday, as prices are on average 22.78% higher than on Wednesday. (Average prices, based on 189921 datapoints.)
We have a lot more statistics for flights VA 314 and between Brisbane and Melbourne.