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 Ambon is April and the most expensive month to fly is November. (Average prices, based on 10470 datapoints.)
The best day to arrive at Jakarta is Friday and it would be best to avoid Monday, as prices are on average 5.86% higher than on Friday. (Average prices, based on 24141 datapoints.)