This is a list of operators of the Douglas DC-4, Douglas C-54, Canadair North Star and Douglas R5D. Civil operators Aden Airways Air Algerie Seagreen Air Transport Aerolíneas Argentinas Aerotransportes Entre Rios Aerovias Halcon (FAMA) Air Express Ansett-ANA Australian National Airways British Commonwealth Pacific Airlines Pacific Air Freighters Qantas Trans Australia Airlines Carib West Airways SABENA Avions Fairey Belgian International Air Services Frigorifico Reyes King of Burundi Air Cameroun (Societie Anonyme des Avions Meyer et Compagnie) Cameroon Airlines Air North Buffalo Airways Eldorado Aviation Canadian Pacific Airlines National Research Council Trans-Canada Airlines World Wide Airways Curtiss Reid Flying Services Canada Kenting Aviation Maritime Central Airways Millardair Nordair Pacific Western Soundair Transair Air Tchad China Airlines Civil Air Transport Avianca SATENA Air Congo Det Danske Luftfartselskab (DDL) Flying Enterprise - Canadair North Star Aerovias Ecuatorianas TACA International Airlines Air France Transgabon Aerotour All-Air LTU International Luftreederei Karl Herfurtner Transportflug Olympic Airways Aviateca Cathay Pacific Airways Indian Airlines Icelandair Loftleidir Aer Turas Shannon Air El Al Alitalia Air Afrique Japan Air Lines , , and East African Airways Middle East Airlines Trans Mediterranean Airways Luxair Air Madagascar Air Mauritanie Aerovias Guest Líneas Aéreas Unidas Mexicanas KLM Martin's Air Charter LANICA (Lineas Aereas de Nicaragua S.A.) Air Niger Det Norske Luftfartsselskap (DNL) Aerovias Internacional Balboa Copa Airlines Paraguayan Airways Service Lloyd Aéreo Paraguayo S.A. Faucett Perú Philippine Air Lines SkyClass Aviation Africair Safair South African Airways Trek Airways Korean Air Lines Air Vietnam Aviaco Iberia Spantax Trans Europa Scandinavian Airlines Svensk Interkontinental Lufttrafik Balair Syrian Airways Thai Airways ACE Freighters Air Charter Limited Channel Airways Dan-Air Eagle Airways Invicta Airways Lloyd International Skyways Starways Air Links BOAC British Midland Derby Airways Keegan Aviation Overseas Aviation Transglobe Airways Aero Union Air America American Airlines American Export Airlines/American Overseas Airlines ARAMCO Biegert Aviation Berlin Airlift Historical Foundation (http://www.spiritoffreedom.org) Capital Airlines Chicago and Southern Airlines Eastern Airlines Matson Airlines National Airlines Northwest Airlines Pan American World Airways Pacific Southwest Airlines Santa Fe Skyways (owned by Santa Fe Railroad) Transocean Air Lines Trans World Airlines United Airlines Westair Transport Waterman Airlines Western Airlines Zantop Linea Expressa Bolivar Notes Canadair North Star operator Ansett-ANA was also an original operator of the Aviation Traders ATL-98 Carvair conversion of the DC-4/C-54 Military operators (Douglas C-54 unless specified) Argentine Air Force Argentine Naval Aviation Belgian Air Force - One former R5D1 from 1950–1971, also operated one DC-4. TAM – Transporte Aéreo