Flight Sydney Airport departs from Sydney Sydney Airport at 19:00 and arrives at Adelaide Adelaide Airport at 20:40.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 1408 Km. So the average speed is roughly 650 Km.
There is an 0.5 hour time difference between Sydney and Adelaide
The best month to arrive at Sydney is February and the most expensive month to fly is March. (Average prices, based on 1000 datapoints.)
We have a lot more statistics for flights GA 442 and between Sydney and Adelaide.