Flight Sydney Airport departs from Sydney Sydney Airport at 19:15 and arrives at Melbourne Melbourne Airport at 20:50.
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 Thursday and it would be best to avoid Saturday, as prices are on average 155.06% higher than on Thursday. (Average prices, based on 36737140 datapoints.)
We have a lot more statistics for flights VA 884 and between Sydney and Melbourne.