| Porto to Montigny-les-Metz | 902.66 mi (1,452.70 km) |
| Porto to Montivilliers | 719.05 mi (1,157.19 km) |
| Porto to Montlouis-sur-Loire | 634.43 mi (1,021.02 km) |
| Porto to Montlucon | 663.80 mi (1,068.28 km) |
| Porto to Montmagny | 758.64 mi (1,220.91 km) |
| Porto to Montmorency | 758.63 mi (1,220.89 km) |
| Porto to Montpellier | 659.22 mi (1,060.92 km) |
| Porto to Montreuil | 756.91 mi (1,218.13 km) |
| Porto to Montrouge | 750.73 mi (1,208.19 km) |
| Porto to Morangis | 746.21 mi (1,200.91 km) |
| Porto to Morieres-les-Avignon | 713.84 mi (1,148.81 km) |
| Porto to Morlaix | 563.29 mi (906.53 km) |
| Porto to Morsang-sur-Orge | 744.62 mi (1,198.35 km) |
| Porto to Mouans-Sartoux | 812.37 mi (1,307.38 km) |
| Porto to Mougins | 813.34 mi (1,308.94 km) |
