Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 13:40 and arrives at Singapore Changi Airport at 16:35.
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 day to arrive at Jakarta is Saturday and it would be best to avoid Friday, as prices are on average 593.45% higher than on Saturday. (Average prices, based on 584467283 datapoints.)
We have a lot more statistics for flights SQ 5574 and between Jakarta and Singapore.