Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 13:05 and arrives at Bangkok Suvarnabhumi Airport at 16:35.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 830 Km. So the average speed is roughly 237 Km.
The best day to arrive at Jakarta is Saturday and it would be best to avoid Tuesday, as prices are on average 164.88% higher than on Saturday. (Average prices, based on 48696556 datapoints.)
We have a lot more statistics for flights GF 6354 and between Jakarta and Bangkok.