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 Medan is October and the most expensive month to fly is January. (Average prices, based on 61618 datapoints.)
The best day to arrive at Kuala Lumpur is Wednesday and it would be best to avoid Sunday, as prices are on average 18.15% higher than on Wednesday. (Average prices, based on 51876 datapoints.)
The cheapest airline flying from Kuala Lumpur to Medan is Batik Air. They are 52% cheaper than MasWings. (Average prices, based on 61635 datapoints.)
The best time to fly is at around 22. (Average prices, based on 63546 datapoints.)