The nearest airport is SBK - St.-brieuc Armor Armor, located 37.3 km north east of Coasmariou.
Other airports nearby include LRT - Lorient Lann Bihoue (59.5 km south west), VNE - Vannes Meucon (62.4 km south east), LAI - Lannion (65.2 km north west), MXN - Morlaix Ploujean (69.0 km north west),