The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 30.5 km south of Unteraich.
Other airports nearby include LJU - Ljubliana Ljubljana (77.5 km south), GRZ - Graz (83.4 km east), MBX - Maribor (113.1 km south east), TRS - Ronchi De Legionari Ronchi Dei Legionari (138.6 km south west),