| Olesno to Oliveira do Bairro | 1,471.22 mi (2,367.71 km) |
| Olesno to Oliveira do Hospital | 1,451.76 mi (2,336.38 km) |
| Olesno to Ourem | 1,511.62 mi (2,432.72 km) |
| Olesno to Ovar | 1,461.95 mi (2,352.77 km) |
| Olesno to Pacos de Ferreira | 1,435.61 mi (2,310.39 km) |
| Olesno to Palmela | 1,573.98 mi (2,533.08 km) |
| Olesno to Paredes | 1,435.59 mi (2,310.35 km) |
| Olesno to Paredes de Coura | 1,416.23 mi (2,279.20 km) |
| Olesno to Penacova | 1,472.86 mi (2,370.34 km) |
| Olesno to Penafiel | 1,433.29 mi (2,306.65 km) |
| Olesno to Peniche | 1,557.65 mi (2,506.80 km) |
| Olesno to Peso da Regua | 1,413.90 mi (2,275.45 km) |
| Olesno to Pinhal Novo | 1,571.60 mi (2,529.25 km) |
| Olesno to Pinhel | 1,400.82 mi (2,254.41 km) |
| Olesno to Pombal | 1,502.44 mi (2,417.94 km) |
