| Silver Spring to Chivasso | 4,167.90 mi (6,707.58 km) |
| Silver Spring to Ciampino | 4,487.99 mi (7,222.72 km) |
| Silver Spring to Cicciano | 4,603.52 mi (7,408.64 km) |
| Silver Spring to Cingoli | 4,459.56 mi (7,176.97 km) |
| Silver Spring to Cinisello Balsamo | 4,213.89 mi (6,781.60 km) |
| Silver Spring to Cinisi | 4,642.60 mi (7,471.54 km) |
| Silver Spring to Cirie | 4,154.06 mi (6,685.31 km) |
| Silver Spring to Ciro Marina | 4,778.52 mi (7,690.29 km) |
| Silver Spring to Cislago | 4,199.98 mi (6,759.21 km) |
| Silver Spring to Cisterna di Latina | 4,505.53 mi (7,250.95 km) |
| Silver Spring to Cisternino | 4,739.49 mi (7,627.47 km) |
| Silver Spring to Citta di Castello | 4,414.14 mi (7,103.87 km) |
| Silver Spring to Citta Sant'Angelo | 4,525.93 mi (7,283.78 km) |
| Silver Spring to Cittadella | 4,319.97 mi (6,952.31 km) |
| Silver Spring to Cittanova | 4,771.14 mi (7,678.42 km) |
