Stockholm-Arlanda Airport — Stockholm, Sweden

ARN is the code for Stockholm Arlanda Airport, Sweden's busiest airport and the main hub for Scandinavian Airlines. Located in Sigtuna Municipality roughly 40 kilometers north of central Stockholm, Arlanda opened in the early 1960s and eventually replaced Bromma as the country's principal international gateway. The field sits 137 feet above sea level and runs three runways, a layout that lets it manage substantial passenger and cargo volumes throughout the year, including stretches of heavy winter snowfall. Arlanda's name is generally said to combine parts of two local parish names, Ärlinghundra and Låssa. A dedicated rail link, the Arlanda Express, connects the terminals directly to Stockholm Central Station in about twenty minutes, supplementing the bus and motorway routes serving the wider region. Today the airport links Scandinavia to destinations across Europe, North America, Asia, and beyond, with several passenger terminals handling the mix of domestic, Schengen, and international traffic. As Sweden's largest airport by a considerable margin, ARN anchors the country's air transport network and dwarfs the other fields serving greater Stockholm in total passenger numbers.