Flight Changi Airport departs from Singapore Changi Airport at 19:55 and arrives at Kuala Lumpur Kuala Lumpur International Airport at 21:00.
The flighttime is about 1h 05m. The distance travelled ("as the bird flies"): 256 Km. So the average speed is roughly 236 Km.
The best day to arrive at Singapore is Tuesday and it would be best to avoid Sunday, as prices are on average 57.54% higher than on Tuesday. (Average prices, based on 80657123 datapoints.)
We have a lot more statistics for flights SQ 5342 and between Singapore and Kuala Lumpur.