Flight Perth Airport departs from Perth Perth Airport at 12:15 and arrives at Singapore Changi Airport at 17:50.
The flighttime is about 5h 35m. The distance travelled ("as the bird flies"): 1789 Km. So the average speed is roughly 320 Km.
The best day to arrive at Perth is Wednesday and it would be best to avoid Thursday, as prices are on average 77.84% higher than on Wednesday. (Average prices, based on 511273 datapoints.)
We have a lot more statistics for flights QF 71 and between Perth and Singapore.
