| Monserrat to Mangualde | 388.51 mi (625.25 km) |
| Monserrat to Marco de Canavezes | 417.22 mi (671.44 km) |
| Monserrat to Marinha Grande | 444.44 mi (715.26 km) |
| Monserrat to Massama | 466.92 mi (751.44 km) |
| Monserrat to Matosinhos | 444.91 mi (716.01 km) |
| Monserrat to Mealhada | 421.96 mi (679.07 km) |
| Monserrat to Melgaco | 443.97 mi (714.51 km) |
| Monserrat to Melres | 427.83 mi (688.53 km) |
| Monserrat to Mira | 437.17 mi (703.57 km) |
| Monserrat to Miranda do Corvo | 413.82 mi (665.99 km) |
| Monserrat to Mirandela | 375.84 mi (604.86 km) |
| Monserrat to Mogadouro | 349.58 mi (562.60 km) |
| Monserrat to Moimenta da Beira | 386.61 mi (622.18 km) |
| Monserrat to Moita | 452.44 mi (728.13 km) |
| Monserrat to Moncao | 452.95 mi (728.95 km) |
