The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 44.2 km east of Radendorf.
Other airports nearby include LJU - Ljubliana Ljubljana (62.3 km south east), TRS - Ronchi De Legionari Ronchi Dei Legionari (82.1 km south), AVB - Aviano Ab (Pagliano E Gori) (107.1 km south west), POW - Portoroz (118.5 km south),