| Ponders End to Mangualde | 846.54 mi (1,362.38 km) |
| Ponders End to Marco de Canavezes | 818.35 mi (1,317.00 km) |
| Ponders End to Marinha Grande | 925.51 mi (1,489.47 km) |
| Ponders End to Massama | 995.63 mi (1,602.32 km) |
| Ponders End to Matosinhos | 830.85 mi (1,337.13 km) |
| Ponders End to Mealhada | 875.10 mi (1,408.34 km) |
| Ponders End to Melgaco | 763.25 mi (1,228.33 km) |
| Ponders End to Melres | 831.21 mi (1,337.70 km) |
| Ponders End to Mira | 878.23 mi (1,413.37 km) |
| Ponders End to Miranda do Corvo | 890.47 mi (1,433.08 km) |
| Ponders End to Mirandela | 778.69 mi (1,253.19 km) |
| Ponders End to Mogadouro | 779.21 mi (1,254.02 km) |
| Ponders End to Moimenta da Beira | 819.66 mi (1,319.11 km) |
| Ponders End to Moita | 996.23 mi (1,603.28 km) |
| Ponders End to Moncao | 771.01 mi (1,240.81 km) |
