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 1687 datapoints.)
The best day to arrive at Kuala Lumpur is Thursday and it would be best to avoid Friday, as prices are on average 75.55% higher than on Thursday. (Average prices, based on 1726 datapoints.)
The cheapest airline flying from Kuala Lumpur to Kuching is Malindo Air. They are 22% cheaper than MasWings. (Average prices, based on 1723 datapoints.)