| Niles to Oliveira de Frades | 3,969.11 mi (6,387.66 km) |
| Niles to Oliveira do Bairro | 3,961.59 mi (6,375.57 km) |
| Niles to Oliveira do Hospital | 3,996.07 mi (6,431.05 km) |
| Niles to Ourem | 3,988.58 mi (6,419.00 km) |
| Niles to Ovar | 3,943.53 mi (6,346.49 km) |
| Niles to Pacos de Ferreira | 3,940.46 mi (6,341.56 km) |
| Niles to Palmela | 4,011.26 mi (6,455.49 km) |
| Niles to Paredes | 3,945.75 mi (6,350.07 km) |
| Niles to Paredes de Coura | 3,911.32 mi (6,294.65 km) |
| Niles to Penacova | 3,979.97 mi (6,405.14 km) |
| Niles to Penafiel | 3,947.77 mi (6,353.32 km) |
| Niles to Peniche | 3,962.19 mi (6,376.53 km) |
| Niles to Peso da Regua | 3,972.09 mi (6,392.46 km) |
| Niles to Pinhal Novo | 4,008.33 mi (6,450.79 km) |
| Niles to Pinhel | 4,017.36 mi (6,465.31 km) |
