Oslo Airport, alternatively referred to as Oslo Gardermoen Airport or simply Gardermoen, is an international airport serving Oslo, the capital and most populous city of Norway. A hub for Scandinavian Airlines and an operating base for Norwegian Air Shuttle and Widerøe, in 2011, it connected to 26 domestic and 158 international destinations.

Oslo is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of 709,037 in 2022, while the city's greater urban area had a population of 1,064,235 in 2022, and the metropolitan area had an estimated population of 1,546,706 in 2021.