| Harper Woods to Montalegre | 3,715.06 mi (5,978.81 km) |
| Harper Woods to Montemor-o-Novo | 3,800.89 mi (6,116.94 km) |
| Harper Woods to Montemor-o-Velho | 3,728.14 mi (5,999.87 km) |
| Harper Woods to Montijo | 3,767.68 mi (6,063.50 km) |
| Harper Woods to Mortagua | 3,740.17 mi (6,019.22 km) |
| Harper Woods to Moura | 3,854.69 mi (6,203.52 km) |
| Harper Woods to Murtosa | 3,711.85 mi (5,973.65 km) |
| Harper Woods to Nazare | 3,729.08 mi (6,001.38 km) |
| Harper Woods to Nelas | 3,755.10 mi (6,043.25 km) |
| Harper Woods to Obidos | 3,732.89 mi (6,007.50 km) |
| Harper Woods to Odemira | 3,818.02 mi (6,144.50 km) |
| Harper Woods to Odivelas | 3,750.92 mi (6,036.52 km) |
| Harper Woods to Oeiras | 3,748.09 mi (6,031.96 km) |
| Harper Woods to Olhao | 3,875.07 mi (6,236.32 km) |
| Harper Woods to Oliveira de Azemeis | 3,715.67 mi (5,979.79 km) |
