Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 14:00 and arrives at Pekanbaru Sultan Syarif Kasim II International Airport at 15:45.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 605 Km. So the average speed is roughly 346 Km.
The best day to arrive at Jakarta is Friday and it would be best to avoid Monday, as prices are on average 43.8% higher than on Friday. (Average prices, based on 135939103 datapoints.)
We have a lot more statistics for flights GA 1724 and between Jakarta and Pekanbaru.