| Duluth to Carpentras | 4,392.25 mi (7,068.65 km) |
| Duluth to Carquefou | 4,005.88 mi (6,446.84 km) |
| Duluth to Carqueiranne | 4,474.53 mi (7,201.06 km) |
| Duluth to Carrieres-sous-Poissy | 4,068.66 mi (6,547.87 km) |
| Duluth to Carrieres-sur-Seine | 4,079.26 mi (6,564.93 km) |
| Duluth to Carros | 4,485.46 mi (7,218.65 km) |
| Duluth to Carvin | 4,037.31 mi (6,497.43 km) |
| Duluth to Castanet-Tolosan | 4,280.41 mi (6,888.66 km) |
| Duluth to Castelginest | 4,270.11 mi (6,872.07 km) |
| Duluth to Castelnau-le-Lez | 4,367.55 mi (7,028.89 km) |
| Duluth to Castelnaudary | 4,306.75 mi (6,931.05 km) |
| Duluth to Castelsarrasin | 4,242.43 mi (6,827.53 km) |
| Duluth to Castres | 4,305.80 mi (6,929.52 km) |
| Duluth to Caudebec-les-Elbeuf | 4,018.02 mi (6,466.38 km) |
| Duluth to Caudry | 4,068.61 mi (6,547.79 km) |
