Please be aware that Jakarta has multiple airports and that these results are for all airports serving the city.
The best month to fly between Jakarta and Pangkalan Bun is April and the most expensive month to fly is October. (Average prices, based on 1636 datapoints.)
The best day to arrive at Jakarta is Friday and it would be best to avoid Sunday, as prices are on average 4.05% higher than on Friday. (Average prices, based on 1651 datapoints.)