Flight Melbourne Airport departs from Melbourne Melbourne Airport at 09:20 and arrives at Sydney Sydney Airport at 10:50.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 787 Km. So the average speed is roughly 525 Km.
The best day to arrive at Melbourne is Tuesday and it would be best to avoid Monday, as prices are on average 143.49% higher than on Tuesday. (Average prices, based on 29510473 datapoints.)
We have a lot more statistics for flights JQ 508 and between Melbourne and Sydney.