Oslo Gardermoen Airport is located in the town of Gardermoen, Norway, and is the largest and busiest airport in the country. The airport is owned and operated by the Norwegian government, and is the main hub for Scandinavian Airlines (SAS).

The airport began construction in 1960 and opened to the public in 1964. It was originally named Gardermoen Airport, but in 1998 its name was changed to Oslo Gardermoen Airport in order to better reflect the airport's location and purpose.

Oslo Gardermoen Airport serves as a hub for domestic, international, and intercontinental flights. It has three terminals and two runways, making it one of the biggest airports in Europe. In addition, the airport houses a variety of retail shops, restaurants, and cafes. Oslo Gardermoen Airport is also home to one of the world's largest duty-free shops.

The airport's three-letter code, OSL, stands for Oslo-Gardermoen, which is the airport's official name. The airport code is used in the IATA (International Air Transport Association) code system, which is used to identify airports around the world. The code was chosen to make it easier for travelers to identify the airport quickly and accurately.

Oslo Gardermoen Airport handles around 1,500 flights a day. These flights are operated by a variety of airlines including SAS, Norwegian, Ryanair, Wideroe, and Lufthansa, among others. The airport is also served by a number of low-cost airlines such as EasyJet and Wizz Air.

Oslo Gardermoen Airport is an important hub for the Scandinavian region, and is the gateway to the rest of Norway. It is also a popular destination for international travelers, and is one of the busiest airports in Europe.