| Oosterend to Oliveira do Bairro | 1,100.03 mi (1,770.33 km) |
| Oosterend to Oliveira do Hospital | 1,091.02 mi (1,755.83 km) |
| Oosterend to Ourem | 1,152.32 mi (1,854.48 km) |
| Oosterend to Ovar | 1,083.87 mi (1,744.32 km) |
| Oosterend to Pacos de Ferreira | 1,054.22 mi (1,696.60 km) |
| Oosterend to Palmela | 1,225.55 mi (1,972.33 km) |
| Oosterend to Paredes | 1,056.03 mi (1,699.52 km) |
| Oosterend to Paredes de Coura | 1,022.84 mi (1,646.10 km) |
| Oosterend to Penacova | 1,108.06 mi (1,783.25 km) |
| Oosterend to Penafiel | 1,054.24 mi (1,696.63 km) |
| Oosterend to Peniche | 1,192.64 mi (1,919.37 km) |
| Oosterend to Peso da Regua | 1,041.78 mi (1,676.59 km) |
| Oosterend to Pinhal Novo | 1,222.11 mi (1,966.80 km) |
| Oosterend to Pinhel | 1,044.06 mi (1,680.25 km) |
| Oosterend to Pombal | 1,138.51 mi (1,832.26 km) |
