Caribou Municipal Airport — Caribou, United States

Caribou Municipal Airport sits in Maine's far northern reaches, amid Aroostook County farm country famous for potato production and long, harsh winters near the Canadian border. The field has long depended on a federal essential-service subsidy program to maintain scheduled flights, since sparse population and distance from major hubs make commercial routes financially difficult without support. Local air service links Caribou to connecting hubs such as Boston, giving county residents, businesses, and the regional hospital network an alternative to hours of driving on rural highways, especially when snow and ice complicate winter travel. General aviation, medevac flights, and agricultural operations round out the airport's modest traffic. Nearby Presque Isle hosts a separate, somewhat larger regional airport, underscoring how thinly this remote farming county's air transport is spread.