| Olive Branch to Montalegre | 4,297.00 mi (6,915.35 km) |
| Olive Branch to Montemor-o-Novo | 4,365.93 mi (7,026.28 km) |
| Olive Branch to Montemor-o-Velho | 4,300.19 mi (6,920.49 km) |
| Olive Branch to Montijo | 4,331.44 mi (6,970.78 km) |
| Olive Branch to Mortagua | 4,314.45 mi (6,943.43 km) |
| Olive Branch to Moura | 4,418.64 mi (7,111.12 km) |
| Olive Branch to Murtosa | 4,286.90 mi (6,899.09 km) |
| Olive Branch to Nazare | 4,297.40 mi (6,916.00 km) |
| Olive Branch to Nelas | 4,330.52 mi (6,969.30 km) |
| Olive Branch to Obidos | 4,299.73 mi (6,919.75 km) |
| Olive Branch to Odemira | 4,376.36 mi (7,043.07 km) |
| Olive Branch to Odivelas | 4,314.66 mi (6,943.77 km) |
| Olive Branch to Oeiras | 4,310.95 mi (6,937.81 km) |
| Olive Branch to Olhao | 4,432.18 mi (7,132.90 km) |
| Olive Branch to Oliveira de Azemeis | 4,291.54 mi (6,906.57 km) |
