| Portici to Bombarral | 1,243.70 mi (2,001.55 km) |
| Portici to Bougado | 1,189.78 mi (1,914.77 km) |
| Portici to Braga | 1,181.20 mi (1,900.96 km) |
| Portici to Braganca | 1,094.39 mi (1,761.25 km) |
| Portici to Cabeceiras de Basto | 1,160.53 mi (1,867.69 km) |
| Portici to Cacem | 1,259.56 mi (2,027.06 km) |
| Portici to Cadaval | 1,241.34 mi (1,997.74 km) |
| Portici to Caldas da Rainha | 1,240.64 mi (1,996.62 km) |
| Portici to Calheta | 1,819.87 mi (2,928.79 km) |
| Portici to Camara de Lobos | 1,811.10 mi (2,914.69 km) |
| Portici to Canico | 1,806.19 mi (2,906.79 km) |
| Portici to Cantanhede | 1,200.51 mi (1,932.03 km) |
| Portici to Carregal do Sal | 1,168.69 mi (1,880.82 km) |
| Portici to Cartaxo | 1,226.06 mi (1,973.15 km) |
| Portici to Cascais | 1,266.42 mi (2,038.11 km) |
