| Portland to Montigny-les-Metz | 5,209.62 mi (8,384.08 km) |
| Portland to Montivilliers | 5,026.17 mi (8,088.84 km) |
| Portland to Montlouis-sur-Loire | 5,162.09 mi (8,307.58 km) |
| Portland to Montlucon | 5,270.24 mi (8,481.64 km) |
| Portland to Montmagny | 5,116.63 mi (8,234.42 km) |
| Portland to Montmorency | 5,115.06 mi (8,231.90 km) |
| Portland to Montpellier | 5,459.87 mi (8,786.81 km) |
| Portland to Montreuil | 5,125.52 mi (8,248.72 km) |
| Portland to Montrouge | 5,124.65 mi (8,247.33 km) |
| Portland to Morangis | 5,131.14 mi (8,257.78 km) |
| Portland to Morieres-les-Avignon | 5,470.32 mi (8,803.63 km) |
| Portland to Morlaix | 4,963.29 mi (7,987.65 km) |
| Portland to Morsang-sur-Orge | 5,133.93 mi (8,262.26 km) |
| Portland to Mouans-Sartoux | 5,546.17 mi (8,925.70 km) |
| Portland to Mougins | 5,547.95 mi (8,928.56 km) |
