| Ollerton to Montalegre | 846.29 mi (1,361.97 km) |
| Ollerton to Montemor-o-Novo | 1,061.83 mi (1,708.85 km) |
| Ollerton to Montemor-o-Velho | 969.67 mi (1,560.54 km) |
| Ollerton to Montijo | 1,070.52 mi (1,722.84 km) |
| Ollerton to Mortagua | 944.57 mi (1,520.13 km) |
| Ollerton to Moura | 1,085.23 mi (1,746.51 km) |
| Ollerton to Murtosa | 931.90 mi (1,499.76 km) |
| Ollerton to Nazare | 1,013.35 mi (1,630.82 km) |
| Ollerton to Nelas | 932.81 mi (1,501.21 km) |
| Ollerton to Obidos | 1,030.73 mi (1,658.79 km) |
| Ollerton to Odemira | 1,138.93 mi (1,832.93 km) |
| Ollerton to Odivelas | 1,068.22 mi (1,719.13 km) |
| Ollerton to Oeiras | 1,077.59 mi (1,734.21 km) |
| Ollerton to Olhao | 1,164.65 mi (1,874.33 km) |
| Ollerton to Oliveira de Azemeis | 922.16 mi (1,484.08 km) |
