Please be aware that Jakarta and Taipei has multiple airports and that these results are for all airports serving the city.
The best month to fly between Jakarta and Taipei is March and the most expensive month to fly is June. (Average prices, based on 4899 datapoints.)
The best day to arrive at Jakarta is Wednesday and it would be best to avoid Thursday, as prices are on average 3.38% higher than on Wednesday. (Average prices, based on 4902 datapoints.)