| Opa-locka to Montalegre | 4,176.34 mi (6,721.17 km) |
| Opa-locka to Montemor-o-Novo | 4,193.64 mi (6,749.01 km) |
| Opa-locka to Montemor-o-Velho | 4,149.97 mi (6,678.73 km) |
| Opa-locka to Montijo | 4,157.01 mi (6,690.06 km) |
| Opa-locka to Mortagua | 4,170.10 mi (6,711.13 km) |
| Opa-locka to Moura | 4,241.42 mi (6,825.90 km) |
| Opa-locka to Murtosa | 4,145.86 mi (6,672.12 km) |
| Opa-locka to Nazare | 4,136.78 mi (6,657.51 km) |
| Opa-locka to Nelas | 4,188.91 mi (6,741.40 km) |
| Opa-locka to Obidos | 4,134.94 mi (6,654.55 km) |
| Opa-locka to Odemira | 4,185.85 mi (6,736.47 km) |
| Opa-locka to Odivelas | 4,140.83 mi (6,664.02 km) |
| Opa-locka to Oeiras | 4,134.92 mi (6,654.50 km) |
| Opa-locka to Olhao | 4,236.36 mi (6,817.76 km) |
| Opa-locka to Oliveira de Azemeis | 4,152.78 mi (6,683.26 km) |
