Joensuu Airport — Joensuu, Finland

JOE is the code for Joensuu Airport, serving Joensuu, a city in eastern Finland near the Russian border and close to Finland's scenic Lake District. The airport provides domestic flights connecting Joensuu to Helsinki, an important link given the region's distance from Finland's capital and its relatively limited rail speed compared to air travel. Joensuu is a university city and regional center for North Karelia, with an economy tied to forestry, technology, and education. JOE also supports general aviation and occasional charter traffic, and its role has grown alongside interest in Finnish Lakeland tourism and cross-border trade historically linked to nearby Russia.