The best month to fly between Chiang Mai and Bangkok is June and the most expensive month to fly is November. (Average prices, based on 4155 datapoints.)
The best day to arrive at Chiang Mai is Thursday and it would be best to avoid Sunday, as prices are on average 97.75% higher than on Thursday. (Average prices, based on 4197 datapoints.)
The cheapest airline flying from Chiang Mai to Bangkok is Thai AirAsia. They are 41% cheaper than Thai Airways. (Average prices, based on 4171 datapoints.)