The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 25.5 km east of Duel.
Other airports nearby include LJU - Ljubliana Ljubljana (52.4 km south east), TRS - Ronchi De Legionari Ronchi Dei Legionari (93.9 km south west), GRZ - Graz (117.7 km north east), AVB - Aviano Ab (Pagliano E Gori) (125.4 km south west),