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 Phuket is March and the most expensive month to fly is April. (Average prices, based on 6885 datapoints.)
The best day to arrive at Kuala Lumpur is Wednesday and it would be best to avoid Thursday, as prices are on average 43.19% higher than on Wednesday. (Average prices, based on 6885 datapoints.)
The best time to fly is at around 18. (Average prices, based on 12262 datapoints.)