Coba jelasin Maskapai dari Bandar Udara Internasional Ninoy Aquino dong

The Manila International Airport Authority runs a shuttle bus system which connects all four terminals for the convenience of passengers who have onward connections on flights departing from another terminal. Shuttle buses run every fifteen minutes during daytime hours, but passengers are required to clear immigration and customs to use the system.

Philippine Airlines operates an airside shuttle service between Terminals 2 and 3 for passengers connecting to onward PAL Express flights and vice-versa.