- Oulu Airport is an international airport located in Oulunsalo, Finland. It is the third-busiest airport in Finland and serves as a gateway to the region of Northern Ostrobothnia. The airport has both domestic and international flights, with connections to several European destinations. The facilities at Oulu Airport include restaurants, shops, car rental services, and parking areas. The airport is approximately 15 kilometers south of the city center of Oulu and is easily accessible by road.