Osijek Airport, commonly referred to as Klisa is the international airport of Osijek, Croatia. It is located 20 km east southeast of Osijek and near the D2 state road, southwest of the village of Klisa.
Wikipedia https://en.wikipedia.org/wiki/Osijek_Airport
Official Website http://www.osijek-airport.hr/
Coordinates 45°27'44.33" N 18°48'44.319" E