- Singapore Airlines provides a smooth and opulent travel experience for its customers, operating out of Terminal 1 of Ninoy Aquino International Airport (NAIA) in Manila. Among the many facilities offered by the Singapore Airlines MNL Terminal are culinary options, lounges, duty-free shopping, and cozy seats. Singapore Airlines guarantees a seamless beginning to your trip with its effective check-in and boarding procedures. Singapore Airlines is known for its world-class service and dedication to passenger comfort, making flying from MNL Terminal a first-rate experience from start to finish.