Please be aware that Jakarta and Kuala Lumpur has multiple airports and that these results are for all airports serving the city.
The best month to fly between Jakarta and Kuala Lumpur is October and the most expensive month to fly is December. (Average prices, based on 136198 datapoints.)
The best day to arrive at Jakarta is Tuesday and it would be best to avoid Sunday, as prices are on average 24.92% higher than on Tuesday. (Average prices, based on 70987 datapoints.)
The cheapest airline flying from Jakarta to Kuala Lumpur is KLM. They are 54% cheaper than MasWings. (Average prices, based on 136236 datapoints.)
The best time to fly is at around 21. (Average prices, based on 156233 datapoints.)