OHL entered the field of airport infrastructure in 1944, when it built the air-sea base in Rota, Cádiz, and a hangar in Torrejón de Ardoz, Madrid. Additional projects include:
- Adolfo Suárez Madrid-Barajas Airport, Satellite Building in Terminal 4 (T4), Madrid, Spain
- Aircraft platform and parking in Barcelona-El Prat Airport, Barcelona, Spain
- Aircraft parking platform in Comodoro Arturo Merino Benítez International Airport, Santiago de Chile, Chile
- Václav Havel Airport Prague, Prague, Czech Republic
In the United States, OHL USA has constructed several airport projects, primarily in Florida through OHL Community Asphalt. These include runways, taxiways, and drainage system improvements at such regional airports as Martin County Airport, Palm Beach County Glades Airport, Key West International Airport, and Big Cypress Airport.