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 December. (Average prices, based on 7855 datapoints.)
The best day to arrive at Kuala Lumpur is Tuesday and it would be best to avoid Sunday, as prices are on average 42.22% higher than on Tuesday. (Average prices, based on 9753 datapoints.)
The cheapest airline flying from Kuala Lumpur to Medan is Malindo Air. They are 44% cheaper than MasWings. (Average prices, based on 7869 datapoints.)
The best time to fly is at around 7. (Average prices, based on 17323 datapoints.)