| Lake Oswego to Oliveira de Frades | 5,243.51 mi (8,438.61 km) |
| Lake Oswego to Oliveira do Bairro | 5,242.94 mi (8,437.70 km) |
| Lake Oswego to Oliveira do Hospital | 5,273.21 mi (8,486.41 km) |
| Lake Oswego to Ourem | 5,285.63 mi (8,506.40 km) |
| Lake Oswego to Ovar | 5,220.18 mi (8,401.07 km) |
| Lake Oswego to Pacos de Ferreira | 5,207.50 mi (8,380.65 km) |
| Lake Oswego to Palmela | 5,330.17 mi (8,578.07 km) |
| Lake Oswego to Paredes | 5,213.24 mi (8,389.91 km) |
| Lake Oswego to Paredes de Coura | 5,168.51 mi (8,317.91 km) |
| Lake Oswego to Penacova | 5,263.24 mi (8,470.37 km) |
| Lake Oswego to Penafiel | 5,214.63 mi (8,392.13 km) |
| Lake Oswego to Peniche | 5,272.98 mi (8,486.04 km) |
| Lake Oswego to Peso da Regua | 5,234.12 mi (8,423.51 km) |
| Lake Oswego to Pinhal Novo | 5,326.33 mi (8,571.89 km) |
| Lake Oswego to Pinhel | 5,278.30 mi (8,494.61 km) |
