The nearest airport is CMF - Chambery Aix Les Bains, located 13.4 km south of Ontex.
Other airports nearby include NCY - Annecy Meythet (29.6 km north east), LYS - Lyon Saint Exupery (56.6 km west), GNB - Grenoble Saint Geoirs (57.4 km south west), GVA - Geneva Cointrin (58.8 km north),