Flight Adisutjipto International Airport departs from Yogyakarta Adisutjipto International Airport at 19:30 and arrives at Jakarta Soekarno–Hatta International Airport at 21:00.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 424 Km. So the average speed is roughly 283 Km.
The best day to arrive at Yogyakarta is Saturday and it would be best to avoid Sunday, as prices are on average 62% higher than on Saturday. (Average prices, based on 2908202 datapoints.)
We have a lot more statistics for flights QG 2108 and between Yogyakarta and Jakarta.