Please be aware that Bangkok has multiple airports and that these results are only for Suvarnabhumi Airport.
The best month to arrive at Bangkok is August and the most expensive month to fly is September. (Average prices, based on 880 datapoints.)
The best day to arrive at Bangkok is Monday and it would be best to avoid Thursday, as prices are on average 30.1% higher than on Monday. (Average prices, based on 7816 datapoints.)
The cheapest airline flying to Bangkok is Thai Vietjet Air. They are 86% cheaper than Cathay Pacific. (Average prices, based on 1035 datapoints.)
At Bangkok the most flights depart around 10:00. (Hourly flights, based on 2041 datapoints.)
From Bangkok it is on average the cheapest to fly to Chiang Mai and to Phuket. (Average prices, based on 996 datapoints.)
From Bangkok most of the flights depart to Kuala Lumpur, second best connected from Bangkok is Chiang Mai. (Daily flights, based on 598 datapoints.)