| Duluth to Campo de Criptana | 4,274.50 mi (6,879.14 km) |
| Duluth to Campos del Puerto | 4,523.18 mi (7,279.36 km) |
| Duluth to Canals | 4,398.28 mi (7,078.35 km) |
| Duluth to Candelaria | 4,171.89 mi (6,714.01 km) |
| Duluth to Canet de Mar | 4,408.02 mi (7,094.02 km) |
| Duluth to Cangas | 3,919.12 mi (6,307.21 km) |
| Duluth to Cangas de Narcea | 3,974.91 mi (6,397.00 km) |
| Duluth to Canovellas | 4,394.97 mi (7,073.02 km) |
| Duluth to Canteras | 4,439.67 mi (7,144.95 km) |
| Duluth to Cantillana | 4,239.13 mi (6,822.22 km) |
| Duluth to Capdepera | 4,527.38 mi (7,286.11 km) |
| Duluth to Carballo | 3,885.17 mi (6,252.58 km) |
| Duluth to Carcagente | 4,396.68 mi (7,075.77 km) |
| Duluth to Cardedeu | 4,397.01 mi (7,076.31 km) |
| Duluth to Carlet | 4,389.08 mi (7,063.54 km) |
