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 November. (Average prices, based on 5178 datapoints.)
The best day to arrive at Kuala Lumpur is Wednesday and it would be best to avoid Thursday, as prices are on average 40.85% higher than on Wednesday. (Average prices, based on 4991 datapoints.)
The cheapest airline flying from Kuala Lumpur to Bangkok is AirAsia. They are 43% cheaper than MasWings. (Average prices, based on 5193 datapoints.)
The best time to fly is at around 19. (Average prices, based on 10278 datapoints.)