Flight El Tari International Airport departs from Kupang El Tari International Airport at 07:00 and arrives at Ruteng Frans Sales Lega Airport at 08:20.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 369 Km. So the average speed is roughly 277 Km.
The best month to arrive at Kupang is August and the most expensive month to fly is May. (Average prices, based on 203 datapoints.)
We have a lot more statistics for flights IW 991 and between Kupang and Ruteng.