Flight Sydney Airport departs from Sydney Sydney Airport at 13:00 and arrives at Melbourne Melbourne Airport at 14:35.
The flighttime is about 1h 35m. The distance travelled ("as the bird flies"): 787 Km. So the average speed is roughly 497 Km.
The best day to arrive at Sydney is Tuesday and it would be best to avoid Friday, as prices are on average 67.49% higher than on Tuesday. (Average prices, based on 33786334 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 113 datapoints.)
We have a lot more statistics for flights QF 445 and between Sydney and Melbourne.