| Castel San Giorgio to Oliveira do Bairro | 1,212.75 mi (1,951.74 km) |
| Castel San Giorgio to Oliveira do Hospital | 1,181.25 mi (1,901.03 km) |
| Castel San Giorgio to Ourem | 1,226.45 mi (1,973.78 km) |
| Castel San Giorgio to Ovar | 1,216.33 mi (1,957.49 km) |
| Castel San Giorgio to Pacos de Ferreira | 1,201.01 mi (1,932.84 km) |
| Castel San Giorgio to Palmela | 1,260.49 mi (2,028.56 km) |
| Castel San Giorgio to Paredes | 1,198.06 mi (1,928.09 km) |
| Castel San Giorgio to Paredes de Coura | 1,205.41 mi (1,939.91 km) |
| Castel San Giorgio to Penacova | 1,204.10 mi (1,937.80 km) |
| Castel San Giorgio to Penafiel | 1,195.47 mi (1,923.92 km) |
| Castel San Giorgio to Peniche | 1,272.41 mi (2,047.75 km) |
| Castel San Giorgio to Peso da Regua | 1,169.53 mi (1,882.18 km) |
| Castel San Giorgio to Pinhal Novo | 1,260.12 mi (2,027.96 km) |
| Castel San Giorgio to Pinhel | 1,135.81 mi (1,827.91 km) |
| Castel San Giorgio to Pombal | 1,226.22 mi (1,973.40 km) |
