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 296 datapoints.)
The best day to arrive at Taipei is Monday and it would be best to avoid Thursday, as prices are on average 26.62% higher than on Monday. (Average prices, based on 236 datapoints.)
The cheapest airline flying from Taipei to Bangkok is Thai Vietjet Air. They are 52% cheaper than EVA Air. (Average prices, based on 311 datapoints.)