| Seaham to Chivasso | 781.02 mi (1,256.93 km) |
| Seaham to Ciampino | 1,101.06 mi (1,771.99 km) |
| Seaham to Cicciano | 1,202.12 mi (1,934.63 km) |
| Seaham to Cingoli | 1,026.36 mi (1,651.77 km) |
| Seaham to Cinisello Balsamo | 791.92 mi (1,274.47 km) |
| Seaham to Cinisi | 1,335.27 mi (2,148.90 km) |
| Seaham to Cirie | 771.79 mi (1,242.08 km) |
| Seaham to Ciro Marina | 1,368.51 mi (2,202.40 km) |
| Seaham to Cislago | 779.66 mi (1,254.75 km) |
| Seaham to Cisterna di Latina | 1,119.49 mi (1,801.64 km) |
| Seaham to Cisternino | 1,299.21 mi (2,090.87 km) |
| Seaham to Citta di Castello | 993.87 mi (1,599.48 km) |
| Seaham to Citta Sant'Angelo | 1,098.62 mi (1,768.06 km) |
| Seaham to Cittadella | 857.15 mi (1,379.45 km) |
| Seaham to Cittanova | 1,399.63 mi (2,252.48 km) |
