Ninoy Aquino International Airport (NAIA) is the only airport and the premier gateway in Metro Manila. It is the busiest airport in the Philippines. NAIA has four terminals: Terminal 1, Terminal 2 (which is exclusively used by Philippine Airlines), Terminal 3 (the newest and largest airport terminal in NAIA) and Terminal 4 (also known as the Manila Domestic Passenger Terminal). The other airport that serves Metro Manila is Clark International Airport in Angeles City which is located  away.