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 Kota Bharu is October and the most expensive month to fly is June. (Average prices, based on 36144 datapoints.)
The best day to arrive at Kuala Lumpur is Tuesday and it would be best to avoid Saturday, as prices are on average 90.87% higher than on Tuesday. (Average prices, based on 37296 datapoints.)
The cheapest airline flying from Kuala Lumpur to Kota Bharu is AirAsia. They are 62% cheaper than MasWings. (Average prices, based on 36162 datapoints.)