Please be aware that Taipei and Tokyo has multiple airports and that these results are for all airports serving the city.
The best month to fly between Taipei and Tokyo is February and the most expensive month to fly is March. (Average prices, based on 427 datapoints.)
The best day to arrive at Taipei is Sunday and it would be best to avoid Wednesday, as prices are on average 149.21% higher than on Sunday. (Average prices, based on 430 datapoints.)
The cheapest airline flying from Taipei to Tokyo is Scoot-Tiger. They are 49% cheaper than EVA Air. (Average prices, based on 438 datapoints.)
The best time to fly is at around 14. (Average prices, based on 614 datapoints.)