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 Palembang is August and the most expensive month to fly is June. (Average prices, based on 445 datapoints.)
The best day to arrive at Kuala Lumpur is Friday and it would be best to avoid Saturday, as prices are on average 67.99% higher than on Friday. (Average prices, based on 445 datapoints.)