Flight Brisbane Airport departs from Brisbane Brisbane Airport at 07:00 and arrives at Melbourne Melbourne Airport at 10:25.
The flighttime is about 3h 25m. The distance travelled ("as the bird flies"): 1343 Km. So the average speed is roughly 393 Km.
The best day to arrive at Brisbane is Wednesday and it would be best to avoid Friday, as prices are on average 203.95% higher than on Wednesday. (Average prices, based on 1164174 datapoints.)
We have a lot more statistics for flights JQ 563 and between Brisbane and Melbourne.