| Saint Albans to Mangualde | 847.33 mi (1,363.65 km) |
| Saint Albans to Marco de Canavezes | 818.53 mi (1,317.30 km) |
| Saint Albans to Marinha Grande | 925.75 mi (1,489.85 km) |
| Saint Albans to Massama | 996.04 mi (1,602.97 km) |
| Saint Albans to Matosinhos | 830.58 mi (1,336.69 km) |
| Saint Albans to Mealhada | 875.43 mi (1,408.88 km) |
| Saint Albans to Melgaco | 762.81 mi (1,227.63 km) |
| Saint Albans to Melres | 831.24 mi (1,337.76 km) |
| Saint Albans to Mira | 878.31 mi (1,413.50 km) |
| Saint Albans to Miranda do Corvo | 891.03 mi (1,433.97 km) |
| Saint Albans to Mirandela | 779.57 mi (1,254.59 km) |
| Saint Albans to Mogadouro | 780.57 mi (1,256.21 km) |
| Saint Albans to Moimenta da Beira | 820.40 mi (1,320.31 km) |
| Saint Albans to Moita | 996.89 mi (1,604.34 km) |
| Saint Albans to Moncao | 770.41 mi (1,239.86 km) |
