Falls International Airport — International Falls, United States

INL identifies Falls International Airport, serving International Falls, Minnesota, a border city directly across the Rainy River from Fort Frances, Ontario, and famously nicknamed the Icebox of the Nation for its frequently frigid winter temperatures. The airport offers scheduled flights to Minneapolis-St. Paul, connecting this remote northern Minnesota community to the wider air network, and also serves as a U.S. Customs port of entry given its proximity to Canada. INL supports general aviation, forestry and paper industry logistics tied to companies like Boise Paper, and cross-border traffic. Its cold-weather record-keeping has made International Falls a recurring reference point in U.S. winter weather reporting.