The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 15.5 km south east of Hart.
Other airports nearby include LJU - Ljubliana Ljubljana (59.2 km south), GRZ - Graz (101.8 km east), TRS - Ronchi De Legionari Ronchi Dei Legionari (112.4 km south west), MBX - Maribor (119.4 km east),