The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 3.0 km north of Gradnitz.
Other airports nearby include LJU - Ljubliana Ljubljana (44.5 km south), GRZ - Graz (93.0 km north east), MBX - Maribor (103.6 km east), TRS - Ronchi De Legionari Ronchi Dei Legionari (110.8 km south west),