| Castel San Giorgio to Bombarral | 1,262.58 mi (2,031.92 km) |
| Castel San Giorgio to Bougado | 1,208.71 mi (1,945.23 km) |
| Castel San Giorgio to Braga | 1,200.12 mi (1,931.41 km) |
| Castel San Giorgio to Braganca | 1,113.30 mi (1,791.69 km) |
| Castel San Giorgio to Cabeceiras de Basto | 1,179.45 mi (1,898.15 km) |
| Castel San Giorgio to Cacem | 1,278.39 mi (2,057.37 km) |
| Castel San Giorgio to Cadaval | 1,260.21 mi (2,028.11 km) |
| Castel San Giorgio to Caldas da Rainha | 1,259.53 mi (2,027.01 km) |
| Castel San Giorgio to Calheta | 1,838.15 mi (2,958.21 km) |
| Castel San Giorgio to Camara de Lobos | 1,829.36 mi (2,944.07 km) |
| Castel San Giorgio to Canico | 1,824.43 mi (2,936.14 km) |
| Castel San Giorgio to Cantanhede | 1,219.44 mi (1,962.50 km) |
| Castel San Giorgio to Carregal do Sal | 1,187.62 mi (1,911.29 km) |
| Castel San Giorgio to Cartaxo | 1,244.91 mi (2,003.50 km) |
| Castel San Giorgio to Cascais | 1,285.24 mi (2,068.40 km) |
