Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 18:20 and arrives at Doha International Airport at 23:00.
The flighttime is about 8h 40m. The distance travelled ("as the bird flies"): 5921 Km. So the average speed is roughly 683 Km.
There is an 4 hour time difference between Jakarta and Doha
The best day to arrive at Jakarta is Friday and it would be best to avoid Thursday, as prices are on average 22.1% higher than on Friday. (Average prices, based on 5106121 datapoints.)
We have a lot more statistics for flights GA 900 and between Jakarta and Doha.