| Opovo to Oliveira de Frades | 1,471.13 mi (2,367.55 km) |
| Opovo to Oliveira do Bairro | 1,491.65 mi (2,400.58 km) |
| Opovo to Oliveira do Hospital | 1,464.63 mi (2,357.10 km) |
| Opovo to Ourem | 1,518.06 mi (2,443.08 km) |
| Opovo to Ovar | 1,489.36 mi (2,396.89 km) |
| Opovo to Pacos de Ferreira | 1,468.31 mi (2,363.02 km) |
| Opovo to Palmela | 1,565.81 mi (2,519.92 km) |
| Opovo to Paredes | 1,466.64 mi (2,360.33 km) |
| Opovo to Paredes de Coura | 1,461.56 mi (2,352.16 km) |
| Opovo to Penacova | 1,487.46 mi (2,393.84 km) |
| Opovo to Penafiel | 1,464.09 mi (2,356.22 km) |
| Opovo to Peniche | 1,565.46 mi (2,519.36 km) |
| Opovo to Peso da Regua | 1,440.28 mi (2,317.91 km) |
| Opovo to Pinhal Novo | 1,564.54 mi (2,517.88 km) |
| Opovo to Pinhel | 1,414.99 mi (2,277.20 km) |
