The nearest airport is LRH - La Rochelle Lherm, located 28.5 km north east of Montoussin.
Other airports nearby include TLS - Toulouse Blagnac (49.1 km north east), LDE - Tarbes Lourdes (83.7 km west), CCF - Carcassonne Salvaza (104.9 km east), AGF - Agen La Garenne (106.6 km north),