Please be aware that Kuala Lumpur and Jakarta has multiple airports and that these results are for all airports serving the city.
The best month to fly between Kuala Lumpur and Jakarta is May and the most expensive month to fly is January. (Average prices, based on 35213 datapoints.)
The best day to arrive at Kuala Lumpur is Wednesday and it would be best to avoid Sunday, as prices are on average 26.72% higher than on Wednesday. (Average prices, based on 33456 datapoints.)
The cheapest airline flying from Kuala Lumpur to Jakarta is Indonesia AirAsia. They are 78% cheaper than Oman Air. (Average prices, based on 35256 datapoints.)
The best time to fly is at around 11. (Average prices, based on 55251 datapoints.)