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 Bandung is February and the most expensive month to fly is July. (Average prices, based on 15104 datapoints.)
The best day to arrive at Kuala Lumpur is Thursday and it would be best to avoid Monday, as prices are on average 26.16% higher than on Thursday. (Average prices, based on 1069 datapoints.)