| Portimao to Cervello | 633.34 mi (1,019.27 km) |
| Portimao to Cervera | 609.50 mi (980.89 km) |
| Portimao to Ceuti | 402.90 mi (648.40 km) |
| Portimao to Cheste | 455.34 mi (732.80 km) |
| Portimao to Chiclana de la Frontera | 141.22 mi (227.28 km) |
| Portimao to Chipiona | 119.55 mi (192.39 km) |
| Portimao to Chiva | 453.37 mi (729.64 km) |
| Portimao to Churriana de la Vega | 269.20 mi (433.24 km) |
| Portimao to Ciempozuelos | 337.68 mi (543.44 km) |
| Portimao to Cieza | 396.54 mi (638.17 km) |
| Portimao to Cisterniga | 371.65 mi (598.11 km) |
| Portimao to Ciudad de Melilla | 336.91 mi (542.21 km) |
| Portimao to Ciudad Real | 281.89 mi (453.65 km) |
| Portimao to Ciudad-Rodrigo | 262.12 mi (421.84 km) |
| Portimao to Cocentaina | 454.84 mi (732.00 km) |
