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 Seletar is February and the most expensive month to fly is July. (Average prices, based on 1874 datapoints.)
The best day to arrive at Kuala Lumpur is Tuesday and it would be best to avoid Friday, as prices are on average 48.4% higher than on Tuesday. (Average prices, based on 1874 datapoints.)
The best time to fly is at around 6. (Average prices, based on 3738 datapoints.)