The nearest airport is MXN - Morlaix Ploujean, located 40.3 km north west of Treffrin.
Other airports nearby include LAI - Lannion (50.6 km north), SBK - St.-brieuc Armor Armor (55.7 km north east), LRT - Lorient Lann Bihoue (60.3 km south), UIP - Quimper Pluguffan (60.5 km south west),