Flight Kuala Lumpur International Airport departs from Kuala Lumpur Kuala Lumpur International Airport at 18:05 and arrives at Singapore Changi Airport at 19:05.
The flighttime is about 1h 00m. The distance travelled ("as the bird flies"): 256 Km. So the average speed is roughly 256 Km.
The best day to arrive at Kuala Lumpur is Saturday and it would be best to avoid Friday, as prices are on average 128.3% higher than on Saturday. (Average prices, based on 84013240 datapoints.)
We have a lot more statistics for flights SQ 117 and between Kuala Lumpur and Singapore.