Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 15:35 and arrives at Singapore Changi Airport at 18:25.
The flighttime is about 1h 50m. The distance travelled ("as the bird flies"): 369 Km. So the average speed is roughly 201 Km.
There is an 1 hour time difference between Jakarta and Singapore
The best day to arrive at Jakarta is Monday and it would be best to avoid Saturday, as prices are on average 43.38% higher than on Monday. (Average prices, based on 929060957 datapoints.)
We have a lot more statistics for flights CI 9656 and between Jakarta and Singapore.
