Flight Sydney Airport departs from Sydney Sydney Airport at 19:45 and arrives at Hobart Hobart International Airport at 21:40.
The flighttime is about 1h 55m. The distance travelled ("as the bird flies"): 944 Km. So the average speed is roughly 493 Km.
The best day to arrive at Sydney is Thursday and it would be best to avoid Tuesday, as prices are on average 344.09% higher than on Thursday. (Average prices, based on 59059 datapoints.)
We have a lot more statistics for flights QF 1585 and between Sydney and Hobart.