| Rapid City to Chivasso | 4,965.93 mi (7,991.90 km) |
| Rapid City to Ciampino | 5,298.32 mi (8,526.83 km) |
| Rapid City to Cicciano | 5,407.57 mi (8,702.65 km) |
| Rapid City to Cingoli | 5,238.22 mi (8,430.11 km) |
| Rapid City to Cinisello Balsamo | 4,993.50 mi (8,036.27 km) |
| Rapid City to Cinisi | 5,504.49 mi (8,858.62 km) |
| Rapid City to Cirie | 4,953.90 mi (7,972.54 km) |
| Rapid City to Ciro Marina | 5,579.97 mi (8,980.10 km) |
| Rapid City to Cislago | 4,980.12 mi (8,014.73 km) |
| Rapid City to Cisterna di Latina | 5,316.95 mi (8,556.81 km) |
| Rapid City to Cisternino | 5,516.79 mi (8,878.41 km) |
| Rapid City to Citta di Castello | 5,200.81 mi (8,369.89 km) |
| Rapid City to Citta Sant'Angelo | 5,310.16 mi (8,545.88 km) |
| Rapid City to Cittadella | 5,073.90 mi (8,165.65 km) |
| Rapid City to Cittanova | 5,599.13 mi (9,010.93 km) |
