Half the hangar would be rented to Widerøe for NOK 500,000 per year. This was insufficient to cover the NOK 1.2 million in annual interest costs. Widerøe took over Norsk Air free of charge on 1 May 1989, and changed the company's name to Widerøe Norsk Air. The company was kept as a subsidiary to avoid cross-subsidization of the subsidized routes. Widerøe started negotiations with Busy Bee, and agreed to lease the Fokker 50 used by Busy Bee to Sandefjord, in exchange for Busy Bee terminating the route in 1990. Widerøe Norsk Air also decided that it was not profitable to fly from both Skien and Sandefjord, and terminated all Skien services. Starting on 28 October 1991, the airline also started a route from Sandefjord via Kristiansand Airport, Kjevik to London. This route was terminated one year later. In 1993, Widerøe sold its Fokker 50 to Norwegian Air Shuttle. On 1 May 1996, Widerøe Norsk Air was merged with Widerøe and ceased to exist. After the merger, Widerøe phased out the Brasilias and replaced them with de Havilland Canada Dash 8 aircraft. The following is a list of destinations served by Norsk Air in regular scheduled services. It includes the city, country, airport and the period in which the airline served the airport. Hubs are denoted with a dagger ().