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.