Please be aware that Bangkok and Taipei has multiple airports and that these results are for all airports serving the city.
The best month to fly between Bangkok and Taipei is March and the most expensive month to fly is February. (Average prices, based on 313 datapoints.)
The best day to arrive at Bangkok is Monday and it would be best to avoid Thursday, as prices are on average 96.16% higher than on Monday. (Average prices, based on 299 datapoints.)
The cheapest airline flying from Bangkok to Taipei is Thai Lion Air. They are 59% cheaper than China Airlines. (Average prices, based on 324 datapoints.)