Flight Kuala Lumpur International Airport departs from Kuala Lumpur Kuala Lumpur International Airport at 07:40 and arrives at Singapore Changi Airport at 08:55.
The flighttime is about 1h 15m. The distance travelled ("as the bird flies"): 256 Km. So the average speed is roughly 205 Km.
The best day to arrive at Kuala Lumpur is Friday and it would be best to avoid Thursday, as prices are on average 190.37% higher than on Friday. (Average prices, based on 83857733 datapoints.)
We have a lot more statistics for flights MH 631 and between Kuala Lumpur and Singapore.