Flight Changi Airport departs from Singapore Changi Airport at 20:40 and arrives at Sydney Sydney Airport at 07:40.
The flighttime is about 8h 00m. The distance travelled ("as the bird flies"): 5577 Km. So the average speed is roughly 697 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 Saturday, as prices are on average 233.44% higher than on Tuesday. (Average prices, based on 722255 datapoints.)
We have a lot more statistics for flights SQ 221 and between Singapore and Sydney.
