| Holt to Cehegin | 4,185.90 mi (6,736.55 km) |
| Holt to Cervello | 4,228.61 mi (6,805.28 km) |
| Holt to Cervera | 4,188.62 mi (6,740.93 km) |
| Holt to Ceuti | 4,210.38 mi (6,775.95 km) |
| Holt to Cheste | 4,184.06 mi (6,733.59 km) |
| Holt to Chiclana de la Frontera | 4,047.19 mi (6,513.33 km) |
| Holt to Chipiona | 4,022.22 mi (6,473.14 km) |
| Holt to Chiva | 4,182.79 mi (6,731.55 km) |
| Holt to Churriana de la Vega | 4,136.38 mi (6,656.86 km) |
| Holt to Ciempozuelos | 4,027.24 mi (6,481.22 km) |
| Holt to Cieza | 4,197.64 mi (6,755.45 km) |
| Holt to Cisterniga | 3,927.94 mi (6,321.41 km) |
| Holt to Ciudad de Melilla | 4,240.17 mi (6,823.89 km) |
| Holt to Ciudad Real | 4,056.30 mi (6,527.98 km) |
| Holt to Ciudad-Rodrigo | 3,879.58 mi (6,243.58 km) |
