Vilyuisk Airport — Vilyuisk, Russia

Vilyuisk Airport, coded VYI, serves the town of Vilyuisk in Russia's vast Sakha Republic (Yakutia), one of the coldest inhabited regions on Earth. Located along the Vilyui River, the airport provides a vital link for a community otherwise isolated by permafrost terrain, limited roads, and extreme seasonal temperature swings that can plunge below minus fifty degrees Celsius in winter. VYI mainly handles small domestic aircraft connecting Vilyuisk to Yakutsk, the republic's capital, supporting supply runs, medical transport, and essential travel. Air transport in this diamond-mining region often substitutes entirely for ground infrastructure during harsh winters, making airports like VYI indispensable lifelines rather than optional conveniences.