Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 22:40 and arrives at Jayapura Sentani International Airport at 06:00.
The flighttime is about 5h 20m. The distance travelled ("as the bird flies"): 3769 Km. So the average speed is roughly 707 Km.
There is an 2 hour time difference between Jakarta and Jayapura
The best day to arrive at Jakarta is Tuesday and it would be best to avoid Friday, as prices are on average 14.7% higher than on Tuesday. (Average prices, based on 67108295 datapoints.)
We have a lot more statistics for flights GA 668 and between Jakarta and Jayapura.