Flight Ngurah Rai International Airport departs from Denpasar Bali Ngurah Rai International Airport at 23:00 and arrives at Perth Perth Airport at 02:50.
The flighttime is about 3h 50m. The distance travelled ("as the bird flies"): 1111 Km. So the average speed is roughly 290 Km.
The best day to arrive at Denpasar Bali is Friday and it would be best to avoid Tuesday, as prices are on average 115.7% higher than on Friday. (Average prices, based on 4737689 datapoints.)
We have a lot more statistics for flights QG 554 and between Denpasar Bali and Perth.