| Somain to Oliveira do Bairro | 885.80 mi (1,425.55 km) |
| Somain to Oliveira do Hospital | 875.45 mi (1,408.90 km) |
| Somain to Ourem | 936.90 mi (1,507.80 km) |
| Somain to Ovar | 870.52 mi (1,400.97 km) |
| Somain to Pacos de Ferreira | 841.19 mi (1,353.77 km) |
| Somain to Palmela | 1,009.37 mi (1,624.42 km) |
| Somain to Paredes | 842.73 mi (1,356.24 km) |
| Somain to Paredes de Coura | 811.71 mi (1,306.32 km) |
| Somain to Penacova | 893.05 mi (1,437.22 km) |
| Somain to Penafiel | 840.84 mi (1,353.21 km) |
| Somain to Peniche | 978.10 mi (1,574.11 km) |
| Somain to Peso da Regua | 827.31 mi (1,331.42 km) |
| Somain to Pinhal Novo | 1,006.02 mi (1,619.03 km) |
| Somain to Pinhel | 827.83 mi (1,332.27 km) |
| Somain to Pombal | 923.56 mi (1,486.33 km) |
