Flight Sydney Airport departs from Sydney Sydney Airport at 18:30 and arrives at Melbourne Melbourne Airport at 20:05.
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 Monday and it would be best to avoid Thursday, as prices are on average 89.4% higher than on Monday. (Average prices, based on 43120577 datapoints.)
We have a lot more statistics for flights VA 878 and between Sydney and Melbourne.
