Please be aware that Kuala Lumpur and Tokyo has multiple airports and that these results are for all airports serving the city.
The best month to fly between Kuala Lumpur and Tokyo is January and the most expensive month to fly is October. (Average prices, based on 282 datapoints.)
The best day to arrive at Kuala Lumpur is Tuesday and it would be best to avoid Friday, as prices are on average 56.42% higher than on Tuesday. (Average prices, based on 333 datapoints.)
The cheapest airline flying from Kuala Lumpur to Tokyo is AirAsia X. They are 68% cheaper than Japan Airlines. (Average prices, based on 291 datapoints.)
The best time to fly is at around 11. (Average prices, based on 636 datapoints.)