| Sioux Falls to Cividale del Friuli | 4,916.01 mi (7,911.56 km) |
| Sioux Falls to Civita Castellana | 5,062.89 mi (8,147.94 km) |
| Sioux Falls to Civitanova Marche | 5,061.97 mi (8,146.46 km) |
| Sioux Falls to Civitavecchia | 5,049.96 mi (8,127.13 km) |
| Sioux Falls to Civitella in Val di Chiana | 4,983.82 mi (8,020.69 km) |
| Sioux Falls to Clusone | 4,804.14 mi (7,731.51 km) |
| Sioux Falls to Coccaglio | 4,820.01 mi (7,757.05 km) |
| Sioux Falls to Codigoro | 4,930.58 mi (7,934.99 km) |
| Sioux Falls to Codogno | 4,828.92 mi (7,771.40 km) |
| Sioux Falls to Codroipo | 4,906.91 mi (7,896.91 km) |
| Sioux Falls to Cogoleto | 4,826.02 mi (7,766.74 km) |
| Sioux Falls to Colle di Val d'Elsa | 4,963.41 mi (7,987.83 km) |
| Sioux Falls to Colle Salvetti | 4,930.21 mi (7,934.40 km) |
| Sioux Falls to Collecchio | 4,866.50 mi (7,831.88 km) |
| Sioux Falls to Colleferro | 5,112.37 mi (8,227.56 km) |
