Flight Changi Airport departs from Singapore Changi Airport at 19:40 and arrives at Sydney Sydney Airport at 06:30.
The flighttime is about 7h 50m. The distance travelled ("as the bird flies"): 5577 Km. So the average speed is roughly 712 Km.
There is an 3 hour time difference between Singapore and Sydney
The best month to arrive at Singapore is June and the most expensive month to fly is February. (Average prices, based on 285 datapoints.)
The best day to arrive at Singapore is Tuesday and it would be best to avoid Monday, as prices are on average 59.4% higher than on Tuesday. (Average prices, based on 720173 datapoints.)
We have a lot more statistics for flights QF2 and between Singapore and Sydney.
