Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 11:00 and arrives at Jambi Sultan Thaha Airport at 12:15.
The flighttime is about 1h 15m. The distance travelled ("as the bird flies"): 360 Km. So the average speed is roughly 288 Km.
The best day to arrive at Jakarta is Sunday and it would be best to avoid Saturday, as prices are on average 7.4% higher than on Sunday. (Average prices, based on 41046069 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 783 datapoints.)
We have a lot more statistics for flights H1 5426 and between Jakarta and Jambi.