The nearest airport is THN - Trollhattan Vanersborg, located 23.4 km north west of Grunntorp.
Other airports nearby include LDK - Lidkoping (52.7 km north east), GOT - Gothenborg Landvetter (54.5 km south), GSE - Gothenborg Save (56.0 km south west), KVB - Skovde (91.8 km north east),