The nearest airport is FDH - Friedrichshafen, located 60.2 km south west of Unterthal.
Other airports nearby include ACH - St Gallen Altenrhein (68.1 km south west), AGB - Augsburg (78.8 km north east), OBF - Oberpfaffenhofen (80.2 km east), FEL - Fuerstenfeldbruck Furstenfeldbruck (83.9 km north east),