| Sioux City to Carpentras | 4,740.76 mi (7,629.52 km) |
| Sioux City to Carquefou | 4,353.96 mi (7,007.01 km) |
| Sioux City to Carqueiranne | 4,822.56 mi (7,761.17 km) |
| Sioux City to Carrieres-sous-Poissy | 4,421.62 mi (7,115.90 km) |
| Sioux City to Carrieres-sur-Seine | 4,432.32 mi (7,133.14 km) |
| Sioux City to Carros | 4,835.39 mi (7,781.81 km) |
| Sioux City to Carvin | 4,392.64 mi (7,069.28 km) |
| Sioux City to Castanet-Tolosan | 4,624.82 mi (7,442.94 km) |
| Sioux City to Castelginest | 4,614.76 mi (7,426.73 km) |
| Sioux City to Castelnau-le-Lez | 4,714.42 mi (7,587.12 km) |
| Sioux City to Castelnaudary | 4,651.27 mi (7,485.50 km) |
| Sioux City to Castelsarrasin | 4,587.35 mi (7,382.63 km) |
| Sioux City to Castres | 4,651.08 mi (7,485.19 km) |
| Sioux City to Caudebec-les-Elbeuf | 4,370.78 mi (7,034.09 km) |
| Sioux City to Caudry | 4,423.77 mi (7,119.37 km) |
