Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 07:00 and arrives at Jambi Sultan Thaha Airport at 08:20.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 360 Km. So the average speed is roughly 270 Km.
The best day to arrive at Jakarta is Monday and it would be best to avoid Thursday, as prices are on average 8.01% higher than on Monday. (Average prices, based on 41660214 datapoints.)
We have a lot more statistics for flights IU 844 and between Jakarta and Jambi.