| Sioux Falls to Castelfidardo | 5,047.31 mi (8,122.86 km) |
| Sioux Falls to Castelfiorentino | 4,947.85 mi (7,962.79 km) |
| Sioux Falls to Castelfranco di Sopra | 4,968.21 mi (7,995.56 km) |
| Sioux Falls to Castelfranco di Sotto | 4,935.22 mi (7,942.47 km) |
| Sioux Falls to Castelfranco Emilia | 4,903.82 mi (7,891.93 km) |
| Sioux Falls to Castelfranco Veneto | 4,884.49 mi (7,860.83 km) |
| Sioux Falls to Castellabate | 5,254.79 mi (8,456.77 km) |
| Sioux Falls to Castellammare del Golfo | 5,288.70 mi (8,511.35 km) |
| Sioux Falls to Castellammare di Stabia | 5,216.88 mi (8,395.76 km) |
| Sioux Falls to Castellamonte | 4,746.34 mi (7,638.49 km) |
| Sioux Falls to Castellana Grotte | 5,304.34 mi (8,536.51 km) |
| Sioux Falls to Castellaneta | 5,308.66 mi (8,543.46 km) |
| Sioux Falls to Castellanza | 4,778.78 mi (7,690.70 km) |
| Sioux Falls to Castellarano | 4,895.54 mi (7,878.61 km) |
| Sioux Falls to Castelleone | 4,824.63 mi (7,764.49 km) |
