Flight Changi Airport departs from Singapore Changi Airport at 09:25 and arrives at Kuala Lumpur Kuala Lumpur International Airport at 10:40.
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 Singapore is Tuesday and it would be best to avoid Sunday, as prices are on average 142.36% higher than on Tuesday. (Average prices, based on 80801262 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 121 datapoints.)
We have a lot more statistics for flights JQ 663 and between Singapore and Kuala Lumpur.