Flight Kuala Lumpur International Airport departs from Kuala Lumpur Kuala Lumpur International Airport at 09:05 and arrives at Singapore Changi Airport at 10:15.
The flighttime is about 1h 10m. The distance travelled ("as the bird flies"): 256 Km. So the average speed is roughly 219 Km.
The best day to arrive at Kuala Lumpur is Sunday and it would be best to avoid Saturday, as prices are on average 585.1% higher than on Sunday. (Average prices, based on 101653780 datapoints.)
We have a lot more statistics for flights QF 5185 and between Kuala Lumpur and Singapore.