Allah Valley Airport — Surallah, Philippines

Allah Valley Airport, on the Philippine island of Mindanao in South Cotabato Province, keeps one runway active at 659 feet above sea level near the town of Surallah. The name comes from the fertile valley surrounding the field rather than from Surallah itself. Mindanao's interior provinces rely on a mix of smaller regional airports like this one to reach areas not directly served by the island's larger cities. Domestic flights connecting South Cotabato to Manila and other major Philippine hubs make up most of its medium-scale traffic, offering a quicker alternative to travel by road across the island's mountainous terrain.