The nearest airport is KLU - Klagenfurt (Worthersee Intl), located 15.4 km east of Knasweg.
Other airports nearby include LJU - Ljubliana Ljubljana (56.0 km south east), GRZ - Graz (104.8 km east), TRS - Ronchi De Legionari Ronchi Dei Legionari (107.8 km south west), MBX - Maribor (120.3 km east),