Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 18:50 and arrives at Bangkok Don Mueang International Airport at 22:20.
The flighttime is about 3h 30m. The distance travelled ("as the bird flies"): 844 Km. So the average speed is roughly 241 Km.
The best day to arrive at Jakarta is Tuesday and it would be best to avoid Saturday, as prices are on average 136.1% higher than on Tuesday. (Average prices, based on 36397026 datapoints.)
We have a lot more statistics for flights QZ 258 and between Jakarta and Bangkok.
