| Duluth to Cabestany | 4,373.34 mi (7,038.21 km) |
| Duluth to Cabries | 4,432.52 mi (7,133.45 km) |
| Duluth to Cachan | 4,085.79 mi (6,575.44 km) |
| Duluth to Caen | 3,971.38 mi (6,391.31 km) |
| Duluth to Cagnes-sur-Mer | 4,488.78 mi (7,223.99 km) |
| Duluth to Cahors | 4,237.64 mi (6,819.82 km) |
| Duluth to Calais | 3,979.87 mi (6,404.98 km) |
| Duluth to Caluire-et-Cuire | 4,307.05 mi (6,931.53 km) |
| Duluth to Cambrai | 4,060.24 mi (6,534.32 km) |
| Duluth to Canet-en-Roussillon | 4,374.72 mi (7,040.43 km) |
| Duluth to Cannes | 4,488.90 mi (7,224.19 km) |
| Duluth to Canteleu | 4,011.59 mi (6,456.03 km) |
| Duluth to Capbreton | 4,160.30 mi (6,695.36 km) |
| Duluth to Carcassonne | 4,326.86 mi (6,963.41 km) |
| Duluth to Carmaux | 4,282.55 mi (6,892.10 km) |
