Please be aware that Kuala Lumpur has multiple airports and that these results are for all airports serving the city.
The best month to fly between Kuala Lumpur and Singapore is December and the most expensive month to fly is June. (Average prices, based on 2852 datapoints.)
The best day to arrive at Kuala Lumpur is Thursday and it would be best to avoid Friday, as prices are on average 77.54% higher than on Thursday. (Average prices, based on 8633 datapoints.)
The cheapest airline flying from Kuala Lumpur to Singapore is Malindo Air. They are 74% cheaper than Singapore Airlines. (Average prices, based on 2901 datapoints.)
The best time to fly is at around 6. (Average prices, based on 11329 datapoints.)