Flight Melbourne Airport departs from Melbourne Melbourne Airport at 13:25 and arrives at Perth Perth Airport at 14:30.
The flighttime is about 4h 05m. The distance travelled ("as the bird flies"): 3233 Km. So the average speed is roughly 792 Km.
There is an 3 hour time difference between Melbourne and Perth
The best day to arrive at Melbourne is Saturday and it would be best to avoid Thursday, as prices are on average 565.2% higher than on Saturday. (Average prices, based on 625722 datapoints.)
We have a lot more statistics for flights QF 773 and between Melbourne and Perth.