The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 37.5 km south west of Kollegg.
Other airports nearby include GRZ - Graz (55.1 km north east), LJU - Ljubliana Ljubljana (67.0 km south), MBX - Maribor (76.9 km south east), TRS - Ronchi De Legionari Ronchi Dei Legionari (146.6 km south west),