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 2729 datapoints.)
The best day to arrive at Kuala Lumpur is Thursday and it would be best to avoid Saturday, as prices are on average 94.32% higher than on Thursday. (Average prices, based on 2723 datapoints.)
The cheapest airline flying from Kuala Lumpur to Kuching is AirAsia. They are 24% cheaper than MasWings. (Average prices, based on 2764 datapoints.)
The best time to fly is at around 10. (Average prices, based on 4258 datapoints.)