Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 19:30 and arrives at Singapore Changi Airport at 22:15.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 369 Km. So the average speed is roughly 211 Km.
There is an 1 hour time difference between Jakarta and Singapore
The best day to arrive at Jakarta is Tuesday and it would be best to avoid Monday, as prices are on average 132.92% higher than on Tuesday. (Average prices, based on 928505140 datapoints.)
We have a lot more statistics for flights PG 4310 and between Jakarta and Singapore.
