| Seaham to Cehegin | 1,157.34 mi (1,862.56 km) |
| Seaham to Cervello | 940.99 mi (1,514.37 km) |
| Seaham to Cervera | 917.98 mi (1,477.35 km) |
| Seaham to Ceuti | 1,158.08 mi (1,863.76 km) |
| Seaham to Cheste | 1,061.73 mi (1,708.69 km) |
| Seaham to Chiclana de la Frontera | 1,293.21 mi (2,081.23 km) |
| Seaham to Chipiona | 1,274.06 mi (2,050.40 km) |
| Seaham to Chiva | 1,062.26 mi (1,709.54 km) |
| Seaham to Churriana de la Vega | 1,227.11 mi (1,974.84 km) |
| Seaham to Ciempozuelos | 1,019.77 mi (1,641.15 km) |
| Seaham to Cieza | 1,147.01 mi (1,845.93 km) |
| Seaham to Cisterniga | 926.24 mi (1,490.63 km) |
| Seaham to Ciudad de Melilla | 1,353.48 mi (2,178.21 km) |
| Seaham to Ciudad Real | 1,102.13 mi (1,773.71 km) |
| Seaham to Ciudad-Rodrigo | 1,012.64 mi (1,629.69 km) |
