| Sioux City to Cabestany | 4,717.78 mi (7,592.53 km) |
| Sioux City to Cabries | 4,780.43 mi (7,693.35 km) |
| Sioux City to Cachan | 4,438.73 mi (7,143.44 km) |
| Sioux City to Caen | 4,323.12 mi (6,957.39 km) |
| Sioux City to Cagnes-sur-Mer | 4,838.53 mi (7,786.86 km) |
| Sioux City to Cahors | 4,583.55 mi (7,376.50 km) |
| Sioux City to Calais | 4,335.15 mi (6,976.74 km) |
| Sioux City to Caluire-et-Cuire | 4,657.81 mi (7,496.02 km) |
| Sioux City to Cambrai | 4,415.36 mi (7,105.84 km) |
| Sioux City to Canet-en-Roussillon | 4,719.26 mi (7,594.92 km) |
| Sioux City to Cannes | 4,838.39 mi (7,786.63 km) |
| Sioux City to Canteleu | 4,364.58 mi (7,024.11 km) |
| Sioux City to Capbreton | 4,502.02 mi (7,245.31 km) |
| Sioux City to Carcassonne | 4,671.59 mi (7,518.20 km) |
| Sioux City to Carmaux | 4,628.47 mi (7,448.80 km) |
