Flight Sydney Airport departs from Sydney Sydney Airport at 16:55 and arrives at Melbourne Melbourne Airport at 07:15.The flight has a short stop at Canberra.
The flighttime is about 14h 20m. The distance travelled ("as the bird flies"): 787 Km. So the average speed is roughly 55 Km.
The best day to arrive at Sydney is Tuesday and it would be best to avoid Friday, as prices are on average 96.08% higher than on Tuesday. (Average prices, based on 37705960 datapoints.)
We have a lot more statistics for flights QF 1511 and between Sydney and Melbourne.