| Sioux Falls to Chivasso | 4,761.43 mi (7,662.79 km) |
| Sioux Falls to Ciampino | 5,093.85 mi (8,197.77 km) |
| Sioux Falls to Cicciano | 5,205.36 mi (8,377.22 km) |
| Sioux Falls to Cingoli | 5,040.27 mi (8,111.54 km) |
| Sioux Falls to Cinisello Balsamo | 4,793.27 mi (7,714.02 km) |
| Sioux Falls to Cinisi | 5,290.17 mi (8,513.70 km) |
| Sioux Falls to Cirie | 4,748.91 mi (7,642.63 km) |
| Sioux Falls to Ciro Marina | 5,379.69 mi (8,657.77 km) |
| Sioux Falls to Cislago | 4,779.65 mi (7,692.11 km) |
| Sioux Falls to Cisterna di Latina | 5,112.39 mi (8,227.60 km) |
| Sioux Falls to Cisternino | 5,321.42 mi (8,563.99 km) |
| Sioux Falls to Citta di Castello | 5,000.78 mi (8,047.97 km) |
| Sioux Falls to Citta Sant'Angelo | 5,111.57 mi (8,226.28 km) |
| Sioux Falls to Cittadella | 4,880.01 mi (7,853.61 km) |
| Sioux Falls to Cittanova | 5,393.05 mi (8,679.28 km) |
