Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 16:30 and arrives at Padang Minangkabau International Airport at 18:20.
The flighttime is about 1h 50m. The distance travelled ("as the bird flies"): 713 Km. So the average speed is roughly 389 Km.
The best month to arrive at Jakarta is August and the most expensive month to fly is April. (Average prices, based on 1195 datapoints.)
We have a lot more statistics for flights H1 5397 and between Jakarta and Padang.