Comodoro Pierrestegui Airport — Concordia, Argentina

Serving Concordia on the Uruguay River, COC gives Entre Ríos province's citrus-growing heartland a direct domestic air connection to Buenos Aires, sparing travelers the long drive along the riverside highways of Argentine Mesopotamia. The city sits directly across the water from Salto, Uruguay, and the two are linked by the Salto Grande Dam, a massive binational hydroelectric project that also carries a road crossing between the two countries. Orange and mandarin groves dominate the surrounding countryside, forming the backbone of a regional economy that the airport's modest cargo capacity occasionally supports alongside its passenger schedule. Regional jets operated by Aerolíneas Argentinas and similar carriers make up the bulk of scheduled traffic on the field's one runway, connecting a mid-sized provincial city rather than a major metropolitan hub.