Please be aware that Taipei and Bangkok has multiple airports and that these results are for all airports serving the city.
The best month to fly between Taipei and Bangkok is March and the most expensive month to fly is April. (Average prices, based on 293 datapoints.)
The best day to arrive at Taipei is Friday and it would be best to avoid Thursday, as prices are on average 51.81% higher than on Friday. (Average prices, based on 279 datapoints.)
The cheapest airline flying from Taipei to Bangkok is Thai Lion Air. They are 43% cheaper than EVA Air. (Average prices, based on 307 datapoints.)