Ralph Wien Memorial Airport — Kotzebue, United States

Ralph Wien Memorial Airport (OTZ) serves Kotzebue, a hub community above the Arctic Circle in northwest Alaska, and functions as the critical air transportation center for numerous surrounding Iñupiat villages that have no road access whatsoever. Named after aviation pioneer Ralph Wien, OTZ handles both scheduled jet service connecting to Anchorage and a constant flow of smaller bush aircraft distributing passengers, mail, and cargo to remote villages across the Northwest Arctic Borough. The airport is essential infrastructure in a region where air travel is often the only practical way to move people and goods, especially during winter months when sea and river routes freeze or become impassable.