| Portage to Cehegin | 4,247.90 mi (6,836.33 km) |
| Portage to Cervello | 4,290.63 mi (6,905.10 km) |
| Portage to Cervera | 4,250.64 mi (6,840.75 km) |
| Portage to Ceuti | 4,272.39 mi (6,875.75 km) |
| Portage to Cheste | 4,246.12 mi (6,833.47 km) |
| Portage to Chiclana de la Frontera | 4,108.86 mi (6,612.57 km) |
| Portage to Chipiona | 4,083.91 mi (6,572.42 km) |
| Portage to Chiva | 4,244.85 mi (6,831.43 km) |
| Portage to Churriana de la Vega | 4,198.25 mi (6,756.43 km) |
| Portage to Ciempozuelos | 4,089.29 mi (6,581.07 km) |
| Portage to Cieza | 4,259.66 mi (6,855.25 km) |
| Portage to Cisterniga | 3,990.01 mi (6,421.30 km) |
| Portage to Ciudad de Melilla | 4,301.90 mi (6,923.24 km) |
| Portage to Ciudad Real | 4,118.29 mi (6,627.75 km) |
| Portage to Ciudad-Rodrigo | 3,941.59 mi (6,343.38 km) |
