JMSDF Hachinohe Air Base / Hachinohe Airport — Hachinohe, Japan

HHE is the code for Hachinohe Airport, which shares its runway with the Japan Maritime Self-Defense Force's Hachinohe Air Base in Aomori Prefecture, at the northern tip of Japan's main island of Honshu. This dual civil-military arrangement is common at several Japanese regional airports, allowing limited commercial passenger service alongside active military patrol operations. HHE offers domestic flights connecting Hachinohe, a port city known for its fishing industry, to Tokyo and other major Japanese hubs. Passenger volumes are modest, reflecting the airport's role as a secondary regional gateway rather than a major traffic center, with much of the base's activity centered on maritime surveillance missions over Japan's northern waters.