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 Singapore is November and the most expensive month to fly is June. (Average prices, based on 151754 datapoints.)
The best day to arrive at Jakarta is Saturday and it would be best to avoid Friday, as prices are on average 12.34% higher than on Saturday. (Average prices, based on 66282 datapoints.)
The cheapest airline flying from Jakarta to Singapore is Scoot-Tiger. They are 85% cheaper than Singapore Airlines. (Average prices, based on 151774 datapoints.)
The best time to fly is at around 16. (Average prices, based on 171774 datapoints.)