Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 09:45 and arrives at Singapore Changi Airport at 12:40.
The flighttime is about 1h 55m. The distance travelled ("as the bird flies"): 369 Km. So the average speed is roughly 193 Km.
There is an 1 hour time difference between Jakarta and Singapore
The best month to arrive at Jakarta is November and the most expensive month to fly is September. (Average prices, based on 1846 datapoints.)
The best day to arrive at Jakarta is Sunday and it would be best to avoid Tuesday, as prices are on average 96.05% higher than on Sunday. (Average prices, based on 585502232 datapoints.)
We have a lot more statistics for flights SQ 8555 and between Jakarta and Singapore.