STB buses 783 and the future M6 underground line, which will link the airport with the main train station of Bucharest. Until 2012 there was also another airport which is no longer used, except for charter/private flights: Aurel Vlaicu International Airport is situated only 8 km north of the Bucharest city centre and is accessible by STB buses 131, 335, 605, 783 and taxi. Water transport Although it is situated on the banks of a river, Bucharest has never functioned as a port city, with other Romanian cities such as Constanţa and Brăila acting as the country's main ports. However, the Danube-Bucharest Canal, which is 73 km long, was under construction until 1990 and is not being worked on as of 2015. When eventually finished, the canal will link Bucharest to the Danube River and, via the Danube-Black Sea Canal, to the Black Sea. This transport corridor is expected to be a significant component of the city's transport infrastructure and increase sea traffic by a large margin. Notes External links Official site of STB (surface transport operator) Official site of Metrorex (subway transport operator) Site that contains all about RATB, depots, vehicles, news Site that contains all about the Bucharest Subway