| Humacao to Cehegin | 4,054.56 mi (6,525.18 km) |
| Humacao to Cervello | 4,256.34 mi (6,849.92 km) |
| Humacao to Cervera | 4,220.95 mi (6,792.96 km) |
| Humacao to Ceuti | 4,083.19 mi (6,571.26 km) |
| Humacao to Cheste | 4,115.99 mi (6,624.04 km) |
| Humacao to Chiclana de la Frontera | 3,812.16 mi (6,135.07 km) |
| Humacao to Chipiona | 3,797.44 mi (6,111.39 km) |
| Humacao to Chiva | 4,114.10 mi (6,621.00 km) |
| Humacao to Churriana de la Vega | 3,952.07 mi (6,360.24 km) |
| Humacao to Ciempozuelos | 3,962.10 mi (6,376.38 km) |
| Humacao to Cieza | 4,075.33 mi (6,558.60 km) |
| Humacao to Cisterniga | 3,913.78 mi (6,298.62 km) |
| Humacao to Ciudad de Melilla | 3,990.04 mi (6,421.35 km) |
| Humacao to Ciudad Real | 3,942.02 mi (6,344.06 km) |
| Humacao to Ciudad-Rodrigo | 3,811.13 mi (6,133.42 km) |
