Copenhagen Airport, Kastrup is an international airport serving Copenhagen, the capital of Denmark, as well as Zealand, the Øresund Region, and southern Sweden including Scania. In 2023 it is the largest airport in the Nordic countries. As the Nordic countries' largest airport, it served 30.3 million passengers in 2019. It is one of the oldest international airports in Europe, the fourth-busiest in Northern Europe, and the busiest for international travel in Scandinavia.