Det Danske Luftfartselskab
Corporate brand
UnclaimedDet Danske Luftfartselskab was Denmark's national airline from 1918 until its operating business was transferred to Scandinavian Airlines System in 1950.
Last updated August 24, 2026
AI crawler reads
No AI crawler has read this profile yet.
Overview
Det Danske Luftfartselskab, commonly known in English as Danish Air Lines and abbreviated DDL, was Denmark's principal commercial airline during the formative decades of civil aviation. Established on 29 October 1918, shortly after the First World War, it began irregular services in October 1919 and was legally registered as a company on 19 March 1920. Its first scheduled service followed on 7 August 1920, linking Copenhagen with Malmö and Warnemünde in cooperation with the German carrier Deutsche Luft-Reederei. The airline operated during a period when commercial aviation was still developing its aircraft, infrastructure, navigation practices, and international regulatory framework. Its early fleet included aircraft derived from military designs, such as the Friedrichshafen F.F.49c, Fokker-Grulich F.III, Dornier Komet, Junkers F.13, and Airco DH.9. DDL initially relied substantially on chartered aircraft and experimented with routes that connected Denmark to neighboring countries and to wider European networks. The airline's early German aircraft arrangements were affected by the postwar restrictions imposed by the Treaty of Versailles, including the return of its first F.F.49c aircraft to Germany. During the 1920s and 1930s, DDL progressively adopted larger and more specialized commercial aircraft. Four-engine Farman F.121 Jabiru aircraft were used on the Copenhagen–Amsterdam route from 1926, with Amsterdam providing onward connections to London and Paris. These aircraft were later replaced by Fokker F.VII aircraft, which offered a more practical operating profile. In 1933, DDL introduced Fokker F.XII aircraft, built under licence by Denmark's Orlogsværftet. In 1938, the company acquired two Focke-Wulf Fw 200 Condor aircraft, marking an ambition to operate longer-range services with substantially greater passenger capacity. The German occupation of Denmark in 1940 brought commercial operations to a halt in April of that year. One of DDL's Condors, Dania, was seized by British forces after the invasion and subsequently damaged beyond economic repair. The other, Jutlandia, survived the war but was later written off after an accident at Northolt in 1946. DDL resumed and rebuilt its operations after the war, using aircraft including Douglas C-47 and C-53 transports and Vickers Viking airliners. In September 1946, DDL entered intercontinental aviation through cooperation with Det Norske Luftfartselskap of Norway and Svensk Interkontinental Lufttrafik of Sweden under the Overseas Scandinavian Airline System, or O.S.A.S. European services were coordinated under the European Scandinavian Airline System, or E.S.A.S., from April 1948. These arrangements reflected the practical and financial advantages of joint Scandinavian operations in the postwar market. On 1 October 1950, the three national airlines signed a consortium agreement under which Scandinavian Airlines System became responsible for airline operations. DDL consequently ceased to function as an independent operating carrier and became a holding company representing Danish interests in SAS. Its independent airline identity therefore ended not through a conventional bankruptcy or consumer-brand withdrawal, but through institutional consolidation into a multinational Scandinavian carrier structure.
History
DDL emerged in the immediate aftermath of the First World War, when European governments and private companies began converting military aviation technology into commercial transport networks. The company was established in Copenhagen on 29 October 1918. It conducted irregular flights from 31 October 1919 and was formally registered on 19 March 1920. Its first scheduled route, inaugurated on 7 August 1920, connected Copenhagen with Malmö and Warnemünde in cooperation with Deutsche Luft-Reederei. The airline's first aircraft was a Friedrichshafen F.F.49c obtained from Germany and refurbished for passenger use. It carried the Danish registration T-DABA and was intended for the Copenhagen–Malmö–Warnemünde service. The aircraft was later returned to Germany, apparently because its transfer conflicted with the postwar Versailles settlement. A second F.F.49c was acquired in 1921 and used the same registration. In the early 1920s, DDL also operated or chartered Fokker-Grulich F.III aircraft, Dornier Komet aircraft, Junkers F.13s, and Airco DH.9s. DDL expanded its European network and fleet during the 1920s. Four Farman F.121 Jabiru aircraft, each capable of carrying nine passengers, entered service from 1926. They were principally associated with the Copenhagen–Amsterdam route, where passengers could connect onward to London and Paris. The Farmans were withdrawn toward the end of the decade and replaced by Fokker F.VII aircraft. In 1933, the airline received two Fokker F.XII aircraft, manufactured under licence by Orlogsværftet in Denmark. These aircraft were larger, modern trimotor transports for their era and remained part of the fleet until the postwar period. In 1938, DDL obtained two Focke-Wulf Fw 200 Condors, each configured for 26 passengers. The aircraft represented the company's move toward longer-range and higher-capacity operations. The Second World War interrupted this development. After Germany invaded Denmark in 1940, DDL suspended all operations in April. One Condor, Dania, was seized by British forces and damaged beyond repair in 1941. The second, Jutlandia, survived the war but was written off after a crosswind-landing accident at Northolt in September 1946. The airline rebuilt its network after the war. Its postwar fleet included Douglas C-47 and C-53 transports and Vickers Viking aircraft. This period also brought a strategic shift from an exclusively Danish network toward Scandinavian cooperation. In September 1946, DDL, Det Norske Luftfartselskap, and Svensk Interkontinental Lufttrafik formed the Overseas Scandinavian Airline System for intercontinental services. European operations were subsequently organized through the European Scandinavian Airline System from 18 April 1948. The cooperative model culminated in the 1950 SAS agreement. On 1 October 1950, representatives of the Danish, Norwegian, and Swedish airlines signed a consortium arrangement that assigned operational responsibility to Scandinavian Airlines System. DDL stopped operating as an independent airline and continued as a holding entity representing Danish participation in SAS. Its history thus forms the Danish foundation of the Scandinavian flag-carrier structure rather than the story of a carrier that continued independently into the jet age. DDL's operating record also included a number of serious accidents. These included the fatal 1933 mail-flight crash near Hannover, several postwar aircraft losses around Copenhagen and northern Europe, a 1947 forced landing on ice near Malmö, and the fatal 1948 crash of Douglas C-53 OY-DCI near Ulrichstein, Germany. On 8 February 1949, Vickers Viking OY-DLU crashed into the sea near Barsebäck, killing all 27 occupants. These events belong to the operational history of an early airline period characterized by limited navigation technology, difficult weather conditions, and rapidly changing aircraft designs.
- 1950
Operations transferred to SAS
[1]The SAS consortium agreement was signed on 1 October, ending DDL's independent operating role.
- 1948
E.S.A.S. European coordination begins
[1]European services were brought under the European Scandinavian Airline System on 18 April.
- 1946
O.S.A.S. intercontinental cooperation begins
[1]DDL joined Norwegian and Swedish partners in the Overseas Scandinavian Airline System.
- 1940
Operations suspended during occupation
[1]Commercial operations were halted in April after Denmark was invaded.
- 1938
Focke-Wulf Condors acquired
[1]DDL acquired two 26-seat Focke-Wulf Fw 200 Condor aircraft for longer-range operations.
- 1933
Fokker F.XII fleet introduced
[1]Two Fokker F.XII aircraft built under licence by Orlogsværftet joined the fleet.
- 1926
Farman Jabiru enters service
[1]The airline introduced Farman F.121 Jabiru aircraft on its Copenhagen–Amsterdam route.
- 1920
Formal registration and first scheduled route
[1]DDL was registered on 19 March and inaugurated scheduled service on 7 August.
- 1919
Irregular operations begin
[1]The airline began irregular operations on 31 October.
- 1918
Company established
[1]Det Danske Luftfartselskab was established on 29 October as Denmark's prospective commercial airline.
Products and positioning
A pioneering national flag carrier serving Denmark's domestic, Scandinavian, European, and later intercontinental aviation needs. DDL positioned itself as Denmark's gateway to international air transport and ultimately became the Danish component of the Scandinavian Airlines System.
Passenger aviation · 1920
Scheduled passenger services
DDL's core offering was scheduled passenger transportation from Copenhagen to Scandinavian and European destinations. Early services relied on small, often single- or trimotor aircraft, while later operations used larger Fokker, Douglas, and Vickers types. The network developed from regional links into broader European and intercontinental services.
Air cargo
Air mail and cargo flights
The airline also carried mail and other cargo, particularly during the early period when passenger demand and aircraft capacity were limited. The 1933 Fokker F.VII accident near Hannover occurred during a cargo and mail flight, illustrating the importance of non-passenger traffic to early airline operations.
International aviation · 1946
Intercontinental services through O.S.A.S.
From September 1946, DDL participated in the Overseas Scandinavian Airline System with Norwegian and Swedish partners. This cooperative platform enabled Scandinavian intercontinental traffic that would have been difficult for each national airline to sustain independently in the postwar period.
Brand decisions
1950
Transfer operating activities to SASM&ABackground
The three Scandinavian national airlines had developed overlapping cooperative structures for European and intercontinental services.
Action taken
On 1 October, DDL, the Norwegian carrier, and the Swedish carrier signed a consortium agreement appointing SAS to conduct airline operations.
Aftermath
DDL ceased to be an independent operating airline and became a holding company representing Danish interests in SAS.
1946
Join the Overseas Scandinavian Airline SystemStrategyBackground
Postwar intercontinental aviation required substantial aircraft, capital, route coordination, and operational expertise. DDL therefore cooperated with the Norwegian and Swedish national airlines.
Action taken
DDL entered the O.S.A.S. arrangement with Det Norske Luftfartselskap and Svensk Interkontinental Lufttrafik in September 1946.
Aftermath
The arrangement established a precedent for deeper Scandinavian airline integration and intercontinental cooperation.
Sources1 sources
Cite this profile: Cite the canonical profile. /brand-wiki/det-danske-luftfartselskab · Editorial policy · How profiles are compiled