Seiyun Hadhramaut International Airport — Seiyun, Yemen

Tucked into the Wadi Hadhramaut valley of eastern Yemen, GXF is the air link for Seiyun, a merchant town whose trading families spread across the Gulf and Southeast Asia generations ago. The airport sits within reach of Shibam, the UNESCO-listed cluster of centuries-old mudbrick tower houses often nicknamed the Manhattan of the desert for its dense skyline of rammed-earth high-rises. Because the surrounding terrain mixes steep canyon walls with open desert, air travel has long mattered more here than in coastal Yemen, where roads are easier to maintain. Yemen's prolonged conflict has repeatedly disrupted scheduled service, leaving flights dependent on shifting security arrangements and humanitarian needs rather than tourist demand. Even with reduced traffic, the field remains one of the few dependable connections tying interior Hadhramaut to Sanaa, Aden, and the wider world beyond Yemen's mountains.