The first four regional airports in Sogn og Fjordane and Møre og Romsdal were opened in 1971 and Widerøe started flights to Florø, Førde, Sogndal and Ørsta–Volda. They were operated with de Havilland Canada DHC-6 Twin Otter aircraft and passengers had to transfer at Flesland to reach Oslo. A SAS service to New York from Oslo Airport, Gardermoen was introduced in 1974, and gradually the service was reduced, in part because of the increased range of newer aircraft. Haugesund Airport, Karmøy opened in 1975 and SAS opened a service between the two cities.