In 1948, the company merged with Narvik-based Polarfly, and changed its name to Widerøe's Flyveselskap & Polarfly A/S. The following year, the company began an aerial photography operation. In 1953, the company chose to differentiate and started production of emergency rafts; refrigerated garages in aluminium; and thermoelements for industry. In 1954, the company received a subcontract from Scandinavian Airlines System (SAS), the successor of DNL, to operate a seaplane route from Tromsø via Alta, Hammerfest, and Kirkenes to Vadsø. For this route, the company bought its first de Havilland Canada DHC-3 Otter. On 1 July 1958, the company changed its name back to Widerøe's Flyveselskap A/S.