Flight Melbourne Airport departs from Melbourne Melbourne Airport at 14:30 and arrives at Sydney Sydney Airport at 15:55.
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 Monday and it would be best to avoid Tuesday, as prices are on average 150.74% higher than on Monday. (Average prices, based on 29766231 datapoints.)
We have a lot more statistics for flights QF 450 and between Melbourne and Sydney.