Flight Melbourne Airport departs from Melbourne Melbourne Airport at 05:55 and arrives at Sydney Sydney Airport at 07:20.
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 Saturday and it would be best to avoid Sunday, as prices are on average 84.39% higher than on Saturday. (Average prices, based on 27839835 datapoints.)
We have a lot more statistics for flights QF 404 and between Melbourne and Sydney.