Please be aware that Taipei and Bangkok has multiple airports and that these results are only for Taoyuan International Airport and airport.
The best month to fly between Taipei and Bangkok is August and the most expensive month to fly is October. (Average prices, based on 501 datapoints.)
The best day to arrive at Taipei is Sunday and it would be best to avoid Thursday, as prices are on average 51.83% higher than on Sunday. (Average prices, based on 469 datapoints.)
The cheapest airline flying from Taipei to Bangkok is Thai Lion Air. They are 70% cheaper than Thai Airways. (Average prices, based on 513 datapoints.)
The best time to fly is at around 9. (Average prices, based on 859 datapoints.)