The airport was built in the late 1970s to replace its predecessor,
Ilopango International Airport, which is now used for regional,
air taxi,
military, and charter aviation. The airport was built on the initiative and request of then-President Colonel
Arturo Armando Molina. Funding for this project was provided through the Government of Japan, Engineering and building came under the direction of
Hazama Ando (then Hazama Gumi). The electrical work for all lighting and communications was completed by
Toshiba (then Tokyo Shibaura Electric). The airport entered in operation on 31 January 1980 as
Cuscatlán International Airport (), with its first flight being a
TACA airliner bound for
Guatemala City. In 1995, the Salvadoran company B&B Arquitectos Asociados designed the expansion of waiting rooms and boarding bridges, of which only the area located to the west was built. The airport is the only connection center in Central America, or hub, for the airline Avianca, and also serves other airlines that fly to almost 30 destinations between
Central America,
North America,
South America and
Europe. Since 1998 when the first expansion of the airport occurred (AIES II), the airport has been suffering from saturation in areas of check-in, screening, immigration and baggage as it continues to serve more than 2 million passengers arriving each year. In late 2012, the Autonomous Port Executive Commission (CEPA) began their rehabilitation, modernization and optimization project for the airport, which was completed in April 2015. On 16 January 2014, President
Mauricio Funes announced that the airport would be renamed after Monsignor
Óscar Arnulfo Romero y Galdámez, but it is still commonly known as El Salvador International Airport (Spanish: ). The Legislature of El Salvador approved the name change on 19 March 2014, without the vote of the
Nationalist Republican Alliance (ARENA) or the
National Coalition Party (PCN), to Monseñor Óscar Arnulfo Romero y Galdámez International Airport. On 24 March 2014, Funes unveiled a ceremonial plaque to mark the official renaming. The airport was renamed to Saint Óscar Arnulfo Romero y Galdámez International Airport on 29 October 2018 by the Commission of Culture and Education after Romero was canonized as a saint by the
Catholic Church on 14 October of the same year. == Airport infrastructure ==