 From then, DNL started international flights using Douglas DC-3 and introduced Short Sandringhams on domestic sea routes.Along with Aerotransport of Sweden and Det Danske Luftfartselskab of Denmark, DNL founded Overseas Scandinavian Airlines System to pool transatlantic flights.In 1948, all of DNL's services were re-branded as SAS and pooled through European Scandinavian Airlines System.