Sabena the Savoia-Marchetti SM.73 airliner. With a speed of 300 km/h (200 mph), it reduced the journey time taken to only four days, and the Sabena service ran on alternate weeks to an Air Afrique service. In Europe, Sabena opened services to Copenhagen and Malmö in 1931 and a route to Berlin was initiated in 1932. The mainstay pre-war airliner that Sabena used in Europe was the successful Junkers Ju 52/3m airliner. The airline's pre-war routes covered almost 6,000 km within Europe. While the Brussels Haren airport was Sabena's main base, the company also operated services from other Belgian airports, and
Airline aircraft, but JAL sold tickets for the flights as if they were JAL flights. This practice allows airlines to expand their operations, at least on paper, into parts of the world where they cannot afford to establish bases or purchase aircraft. Another example was the Austrian–Sabena partnership on the Vienna–Brussels–New York/JFK route during the late '60s, using a Sabena Boeing 707 with Austrian livery. Since airline reservation requests are often made by city-pair (such as "show me flights from Chicago to Düsseldorf"), an airline that can codeshare with another airline for a variety of routes might be able to be