Please be aware that Taipei has multiple airports and that these results are for all airports serving the city.
The best month to fly between Taipei and Manila is November and the most expensive month to fly is October. (Average prices, based on 598 datapoints.)
The best day to arrive at Taipei is Saturday and it would be best to avoid Friday, as prices are on average 45.07% higher than on Saturday. (Average prices, based on 598 datapoints.)
The cheapest airline flying from Taipei to Manila is Philippine Airlines. They are 12% cheaper than EVA Air. (Average prices, based on 603 datapoints.)
