| Porcia to Oliveira do Bairro | 1,123.53 mi (1,808.14 km) |
| Porcia to Oliveira do Hospital | 1,098.61 mi (1,768.03 km) |
| Porcia to Ourem | 1,154.63 mi (1,858.20 km) |
| Porcia to Ovar | 1,119.20 mi (1,801.18 km) |
| Porcia to Pacos de Ferreira | 1,096.55 mi (1,764.73 km) |
| Porcia to Palmela | 1,208.08 mi (1,944.21 km) |
| Porcia to Paredes | 1,095.30 mi (1,762.72 km) |
| Porcia to Paredes de Coura | 1,086.67 mi (1,748.83 km) |
| Porcia to Penacova | 1,121.09 mi (1,804.22 km) |
| Porcia to Penafiel | 1,092.80 mi (1,758.69 km) |
| Porcia to Peniche | 1,201.97 mi (1,934.39 km) |
| Porcia to Peso da Regua | 1,069.99 mi (1,721.99 km) |
| Porcia to Pinhal Novo | 1,206.37 mi (1,941.47 km) |
| Porcia to Pinhel | 1,048.08 mi (1,686.72 km) |
| Porcia to Pombal | 1,148.66 mi (1,848.58 km) |
