Flight Changi Airport departs from Singapore Changi Airport at 19:15 and arrives at Kuala Lumpur Kuala Lumpur International Airport at 20:25.
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 Singapore is Monday and it would be best to avoid Saturday, as prices are on average 63.13% higher than on Monday. (Average prices, based on 80536808 datapoints.)
We have a lot more statistics for flights MH 616 and between Singapore and Kuala Lumpur.