What Terminal is Korean Air at MNL? Korean Air operates from Terminal 1 of Ninoy Aquino International Airport. This terminal is designed to handle international flights and provides a wide range of modern facilities and services to Korean Air passengers. Terminal 1 provides a smooth travel experience, from quick security checks and comfortable lounges to high-quality dining selections. Travelers flying with Korean Air at MNL can expect courteous service, dependable luggage handling, and quick access to gates.