El Dorado International Airport ( IATA : BOG , ICAO : SKBO ) is an international airport serving Bogotá , Colombia and its surrounding areas. The airport is located mostly in the Fontibón district of Bogotá, although it partially extends into the Engativá district and the municipality of Funza in the Western Savanna Province of the Cundinamarca Department . In 2018, it served over 32.7 million passengers and 741,000 metric tons of cargo. This makes El Dorado the third busiest airport in Latin America in terms of passenger traffic, and the busiest in terms of cargo. El Dorado is also by far the busiest and most important airport in Colombia, accounting for just under half (49%) of the country's air traffic. The El Dorado Passenger Terminal was designed during the government of General Gustavo Rojas Pinilla . Its construction began in 1955 and entered in service by December 1959, replacing Techo International Airport , which had been the city's main airport since 1930. El Dorado is a hub for the Colombian flag-carrier Avianca , LATAM Colombia , Satena , Wingo , and a number of cargo companies. It is owned by the Government of Colombia and operated by Operadora Aeroportuaria Internacional (OPAIN), a consortium composed of Colombian construction and engineering firms and the Swiss company Flughafen Zürich AG , the company that operates Zurich International Airport. The airport has been named the best airport in South America by World Airport Awards. El Dorado received four-star certification and its staff was rated the best in South America by Skytrax , as well as achieving 42nd place in Skytrax's World's Top 100 Airports in 2017.