| Seaham to Carterton | 213.06 mi (342.88 km) |
| Seaham to Castle Bromwich | 162.36 mi (261.29 km) |
| Seaham to Castleford | 77.66 mi (124.99 km) |
| Seaham to Castleton | 92.66 mi (149.11 km) |
| Seaham to Caterham | 251.43 mi (404.64 km) |
| Seaham to Catford | 240.83 mi (387.59 km) |
| Seaham to Caversham | 233.55 mi (375.86 km) |
| Seaham to Chaddesden | 132.02 mi (212.47 km) |
| Seaham to Chalfont Saint Peter | 225.72 mi (363.26 km) |
| Seaham to Chandlers Ford | 266.43 mi (428.78 km) |
| Seaham to Chapel en le Frith | 107.46 mi (172.94 km) |
| Seaham to Chapeltown | 95.35 mi (153.45 km) |
| Seaham to Chard | 282.28 mi (454.29 km) |
| Seaham to Charlton Kings | 206.02 mi (331.56 km) |
| Seaham to Chatham | 251.84 mi (405.29 km) |
