The nearest airport is VAF - Valence Chabeuil, located 38.5 km west of Mercier.
Other airports nearby include GNB - Grenoble Saint Geoirs (43.2 km north), CMF - Chambery Aix Les Bains (80.2 km north east), LYS - Lyon Saint Exupery (87.2 km north), LYN - Lyon Bron (91.7 km north west),