| Osecina to Montalegre | 1,386.57 mi (2,231.46 km) |
| Osecina to Montemor-o-Novo | 1,484.49 mi (2,389.05 km) |
| Osecina to Montemor-o-Velho | 1,467.27 mi (2,361.34 km) |
| Osecina to Montijo | 1,517.14 mi (2,441.61 km) |
| Osecina to Mortagua | 1,438.62 mi (2,315.23 km) |
| Osecina to Moura | 1,462.00 mi (2,352.87 km) |
| Osecina to Murtosa | 1,451.38 mi (2,335.76 km) |
| Osecina to Nazare | 1,500.49 mi (2,414.80 km) |
| Osecina to Nelas | 1,417.72 mi (2,281.60 km) |
| Osecina to Obidos | 1,511.33 mi (2,432.25 km) |
| Osecina to Odemira | 1,536.70 mi (2,473.08 km) |
| Osecina to Odivelas | 1,527.90 mi (2,458.91 km) |
| Osecina to Oeiras | 1,537.65 mi (2,474.61 km) |
| Osecina to Olhao | 1,515.77 mi (2,439.40 km) |
| Osecina to Oliveira de Azemeis | 1,441.13 mi (2,319.27 km) |
