| Summit to Mangualde | 3,401.34 mi (5,473.93 km) |
| Summit to Marco de Canavezes | 3,367.02 mi (5,418.70 km) |
| Summit to Marinha Grande | 3,367.99 mi (5,420.25 km) |
| Summit to Massama | 3,379.03 mi (5,438.02 km) |
| Summit to Matosinhos | 3,340.61 mi (5,376.19 km) |
| Summit to Mealhada | 3,374.10 mi (5,430.09 km) |
| Summit to Melgaco | 3,337.02 mi (5,370.41 km) |
| Summit to Melres | 3,358.12 mi (5,404.37 km) |
| Summit to Mira | 3,359.04 mi (5,405.85 km) |
| Summit to Miranda do Corvo | 3,387.51 mi (5,451.66 km) |
| Summit to Mirandela | 3,405.29 mi (5,480.28 km) |
| Summit to Mogadouro | 3,431.57 mi (5,522.58 km) |
| Summit to Moimenta da Beira | 3,398.23 mi (5,468.92 km) |
| Summit to Moita | 3,396.39 mi (5,465.96 km) |
| Summit to Moncao | 3,327.98 mi (5,355.87 km) |
