Flight Changi Airport departs from Singapore Changi Airport at 16:10 and arrives at Denpasar Bali Ngurah Rai International Airport at 18:55.
The flighttime is about 2h 45m. The distance travelled ("as the bird flies"): 1294 Km. So the average speed is roughly 471 Km.
The best day to arrive at Singapore is Sunday and it would be best to avoid Tuesday, as prices are on average 72.87% higher than on Sunday. (Average prices, based on 21464613 datapoints.)
We have a lot more statistics for flights QZ 501 and between Singapore and Denpasar Bali.