| South Portland to Montigny-les-Metz | 3,506.84 mi (5,643.71 km) |
| South Portland to Montivilliers | 3,247.45 mi (5,226.26 km) |
| South Portland to Montlouis-sur-Loire | 3,330.93 mi (5,360.61 km) |
| South Portland to Montlucon | 3,437.09 mi (5,531.46 km) |
| South Portland to Montmagny | 3,352.47 mi (5,395.28 km) |
| South Portland to Montmorency | 3,351.06 mi (5,393.00 km) |
| South Portland to Montpellier | 3,576.40 mi (5,755.66 km) |
| South Portland to Montreuil | 3,359.58 mi (5,406.72 km) |
| South Portland to Montrouge | 3,355.66 mi (5,400.42 km) |
| South Portland to Morangis | 3,359.18 mi (5,406.08 km) |
| South Portland to Morieres-les-Avignon | 3,611.22 mi (5,811.70 km) |
| South Portland to Morlaix | 3,100.56 mi (4,989.87 km) |
| South Portland to Morsang-sur-Orge | 3,360.87 mi (5,408.79 km) |
| South Portland to Mouans-Sartoux | 3,712.54 mi (5,974.76 km) |
| South Portland to Mougins | 3,714.21 mi (5,977.44 km) |
