Flight Melbourne Airport departs from Melbourne Melbourne Airport at 12:30 and arrives at Sydney Sydney Airport at 13:55.
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 Thursday and it would be best to avoid Friday, as prices are on average 99.96% higher than on Thursday. (Average prices, based on 29530836 datapoints.)
We have a lot more statistics for flights QF 442 and between Melbourne and Sydney.