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 547 datapoints.)
The best day to arrive at Taipei is Saturday and it would be best to avoid Friday, as prices are on average 52.26% higher than on Saturday. (Average prices, based on 504 datapoints.)
The cheapest airline flying from Taipei to Manila is Philippines AirAsia. They are 44% cheaper than China Airlines. (Average prices, based on 557 datapoints.)
The best time to fly is at around 23. (Average prices, based on 969 datapoints.)