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 February and the most expensive month to fly is June. (Average prices, based on 1331 datapoints.)
The best day to arrive at Kuala Lumpur is Monday and it would be best to avoid Saturday, as prices are on average 78.97% higher than on Monday. (Average prices, based on 1038 datapoints.)
The cheapest airline flying from Kuala Lumpur to Kota Bharu is AirAsia. They are 18% cheaper than FireFly. (Average prices, based on 1357 datapoints.)
The best time to fly is at around 6. (Average prices, based on 2877 datapoints.)