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 Kuching is October and the most expensive month to fly is April. (Average prices, based on 2639 datapoints.)
The best day to arrive at Kuala Lumpur is Saturday and it would be best to avoid Wednesday, as prices are on average 141.06% higher than on Saturday. (Average prices, based on 345 datapoints.)
The cheapest airline flying from Kuala Lumpur to Kuching is AirAsia. They are 42% cheaper than MasWings. (Average prices, based on 2666 datapoints.)
The best time to fly is at around 10. (Average prices, based on 4543 datapoints.)