Flight Changi Airport departs from Singapore Changi Airport at 14:15 and arrives at Denpasar Bali Ngurah Rai International Airport at 17:55.
The flighttime is about 3h 40m. The distance travelled ("as the bird flies"): 1294 Km. So the average speed is roughly 353 Km.
The best month to arrive at Singapore is November and the most expensive month to fly is July. (Average prices, based on 416 datapoints.)
We have a lot more statistics for flights 8B 554 and between Singapore and Denpasar Bali.
