The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 9.5 km south east of Zweikirchen.
Other airports nearby include LJU - Ljubliana Ljubljana (56.3 km south), GRZ - Graz (94.7 km east), MBX - Maribor (111.8 km east), TRS - Ronchi De Legionari Ronchi Dei Legionari (115.8 km south west),