| Harwich to Cehegin | 967.77 mi (1,557.48 km) |
| Harwich to Cervello | 728.82 mi (1,172.93 km) |
| Harwich to Cervera | 709.47 mi (1,141.78 km) |
| Harwich to Ceuti | 965.13 mi (1,553.23 km) |
| Harwich to Cheste | 865.56 mi (1,392.98 km) |
| Harwich to Chiclana de la Frontera | 1,131.93 mi (1,821.67 km) |
| Harwich to Chipiona | 1,115.55 mi (1,795.30 km) |
| Harwich to Chiva | 866.31 mi (1,394.19 km) |
| Harwich to Churriana de la Vega | 1,049.16 mi (1,688.45 km) |
| Harwich to Ciempozuelos | 846.11 mi (1,361.69 km) |
| Harwich to Cieza | 955.07 mi (1,537.03 km) |
| Harwich to Cisterniga | 765.79 mi (1,232.42 km) |
| Harwich to Ciudad de Melilla | 1,169.15 mi (1,881.57 km) |
| Harwich to Ciudad Real | 928.78 mi (1,494.73 km) |
| Harwich to Ciudad-Rodrigo | 866.33 mi (1,394.22 km) |
