Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 15:45 and arrives at Semarang Achmad Yani International Airport at 16:55.
The flighttime is about 1h 10m. The distance travelled ("as the bird flies"): 415 Km. So the average speed is roughly 356 Km.
The best month to arrive at Jakarta is November and the most expensive month to fly is June. (Average prices, based on 1843 datapoints.)
The best day to arrive at Jakarta is Tuesday and it would be best to avoid Saturday, as prices are on average 18.49% higher than on Tuesday. (Average prices, based on 172895756 datapoints.)
The best time to book is 58 days before the departure date. You will get, on average, the cheapest price for flight GA 238. (Average prices, based on 1677 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 1789 datapoints.)
We have a lot more statistics for flights GA 238 and between Jakarta and Semarang.