| Portimao to Mombris | 1,251.97 mi (2,014.85 km) |
| Portimao to Monchengladbach | 1,217.60 mi (1,959.53 km) |
| Portimao to Monschau | 1,180.15 mi (1,899.28 km) |
| Portimao to Montabaur | 1,223.65 mi (1,969.27 km) |
| Portimao to Moosburg | 1,293.03 mi (2,080.94 km) |
| Portimao to Morbach | 1,171.52 mi (1,885.39 km) |
| Portimao to Morfelden-Walldorf | 1,229.01 mi (1,977.90 km) |
| Portimao to Morlenbach | 1,216.83 mi (1,958.29 km) |
| Portimao to Morsbach | 1,240.38 mi (1,996.21 km) |
| Portimao to Mosbach | 1,220.91 mi (1,964.87 km) |
| Portimao to Mosigkau | 1,432.25 mi (2,304.98 km) |
| Portimao to Mossingen | 1,179.27 mi (1,897.84 km) |
| Portimao to Much | 1,232.86 mi (1,984.09 km) |
| Portimao to Mucheln | 1,395.27 mi (2,245.48 km) |
| Portimao to Muhlacker | 1,193.13 mi (1,920.15 km) |
