First regular flights to Sarajevo using an airfield in the suburb of Butmir begin in 1930 when the domestic airliner Aeroput opened a regular route linking Belgrade to Podgorica through Sarajevo. Later, Aeroput opened a route which linked Sarajevo with Split, Rijeka and Dubrovnik, and in 1938, first international flights were introduced when Aeroput extended the route Dubrovnik – Sarajevo – Zagreb to Vienna, Brno and Prague. The airfield in Butmir remained in use all the way until 1969. The need for a new airport in Sarajevo, with an asphalt-concrete runway, was acknowledged in the mid-1960s when JAT, Yugoslav national carrier at that time, began acquiring jet planes. The construction of the airport began in 1966 at its present location, not far from the old one.