Phú Quốc International Airport — Phu Quoc Island, Vietnam

Vietnam's largest island depends heavily on Phú Quốc International Airport, coded PQC, which opened in 2012 on reclaimed and leveled land in the southern part of the island, replacing a smaller, capacity-constrained airfield closer to the main town. Phú Quốc sits in the Gulf of Thailand closer to Cambodia than to the Vietnamese mainland, and the government has aggressively developed it as a beach and casino resort destination over the past decade, complete with a limited visa-free entry policy designed to draw international visitors. Domestic carriers link PQC densely to Ho Chi Minh City and Hanoi, while a growing slate of international routes connects the island directly to South Korea, China, and other parts of Asia. Coral reefs, national park forest covering much of the interior, and a rapidly expanding hotel strip along Long Beach continue to drive demand at what has become one of Vietnam's fastest-growing airports.