The nearest airport is POW - Portoroz, located 29.4 km north west of Kašćerga.
Other airports nearby include PUY - Pula (45.4 km south), RJK - Rijeka (53.4 km east), TRS - Ronchi De Legionari Ronchi Dei Legionari (67.3 km north west), LJU - Ljubliana Ljubljana (111.2 km north east),