From the 1980s the airport was upgraded and de Havilland Canada Dash 7 started being used, allowing all-year services to Oslo.

A government commission, led by Erik Himle and later Preben Munthe, was appointed in 1962 to consider additional airports in Norway.

[4] Widerøe launched an alternative proposal and suggested that a network of smaller airports be built instead, which could be served using short take-off and landing aircraft, which were being developed at the time.

The political rationale was that, despite that the total operating costs would rise, it would provide better services to rural areas and thus keep up their population.

[3] As an alternative location for the airport to serve Sogn, Høyanger was considered and test flights were flown there.

Mayor of Sogndal, Nils Knagenhjelm, offered a free section of land at Haukåsen if the airport was located there.

[8] The road to the airport was frequently closed and in 1978 a dorm was built to allow the employees to overnight should they get caught by a blizzard.

[7] This allowed Widerøe to introduce the de Havilland Canada Dash 7 on the route from Florø and Sogndal to Oslo Airport, Fornebu in September 1983.

[10] Ownership of the airport passed from Sogndal Municipality to the Civil Aviation Administration (later renamed Avinor) on 1 January 1997.

[12] The airport was upgraded between 2004 and 2007 with expanded safety areas, lights, land- and air-side parking, a new arrival terminal, navigational system and additional garage space.