Flight Melbourne Airport departs from Melbourne Melbourne Airport at 19:45 and arrives at Sydney Sydney Airport at 21:10.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 787 Km. So the average speed is roughly 556 Km.
The best day to arrive at Melbourne is Sunday and it would be best to avoid Friday, as prices are on average 213.89% higher than on Sunday. (Average prices, based on 27786644 datapoints.)
We have a lot more statistics for flights QF 492 and between Melbourne and Sydney.