Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 18:05 and arrives at Yogyakarta Yogyakarta International Airport at 19:15.
The flighttime is about 1h 10m. The distance travelled ("as the bird flies"): 383 Km. So the average speed is roughly 328 Km.
The best month to arrive at Jakarta is December and the most expensive month to fly is March. (Average prices, based on 929 datapoints.)
We have a lot more statistics for flights IU 6374 and between Jakarta and Yogyakarta.
