Flight Changi Airport departs from Singapore Changi Airport at 11:05 and arrives at Kuala Lumpur Kuala Lumpur International Airport at 12:25.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 256 Km. So the average speed is roughly 192 Km.
The best day to arrive at Singapore is Sunday and it would be best to avoid Thursday, as prices are on average 1550.61% higher than on Sunday. (Average prices, based on 81388961 datapoints.)
We have a lot more statistics for flights QF 614 and between Singapore and Kuala Lumpur.
IDR