Please be aware that Kuala Lumpur and Bangkok has multiple airports and that these results are for all airports serving the city.
The best month to fly between Kuala Lumpur and Bangkok is May and the most expensive month to fly is December. (Average prices, based on 43824 datapoints.)
The best day to arrive at Kuala Lumpur is Monday and it would be best to avoid Friday, as prices are on average 10.29% higher than on Monday. (Average prices, based on 21939 datapoints.)
The cheapest airline flying from Kuala Lumpur to Bangkok is AirAsia. They are 49% cheaper than MasWings. (Average prices, based on 43842 datapoints.)
The best time to fly is at around 17. (Average prices, based on 63828 datapoints.)