| Muskegon to Montalegre | 3,839.99 mi (6,179.87 km) |
| Muskegon to Montemor-o-Novo | 3,933.35 mi (6,330.11 km) |
| Muskegon to Montemor-o-Velho | 3,857.75 mi (6,208.44 km) |
| Muskegon to Montijo | 3,900.74 mi (6,277.63 km) |
| Muskegon to Mortagua | 3,868.73 mi (6,226.12 km) |
| Muskegon to Moura | 3,987.47 mi (6,417.22 km) |
| Muskegon to Murtosa | 3,840.12 mi (6,180.08 km) |
| Muskegon to Nazare | 3,860.32 mi (6,212.58 km) |
| Muskegon to Nelas | 3,883.10 mi (6,249.25 km) |
| Muskegon to Obidos | 3,864.74 mi (6,219.70 km) |
| Muskegon to Odemira | 3,953.12 mi (6,361.93 km) |
| Muskegon to Odivelas | 3,884.02 mi (6,250.73 km) |
| Muskegon to Oeiras | 3,881.55 mi (6,246.76 km) |
| Muskegon to Olhao | 4,010.52 mi (6,454.31 km) |
| Muskegon to Oliveira de Azemeis | 3,843.54 mi (6,185.58 km) |
