| Iselin to Mangualde | 3,403.00 mi (5,476.60 km) |
| Iselin to Marco de Canavezes | 3,368.78 mi (5,421.53 km) |
| Iselin to Marinha Grande | 3,369.38 mi (5,422.49 km) |
| Iselin to Massama | 3,380.18 mi (5,439.87 km) |
| Iselin to Matosinhos | 3,342.33 mi (5,378.96 km) |
| Iselin to Mealhada | 3,375.67 mi (5,432.61 km) |
| Iselin to Melgaco | 3,338.97 mi (5,373.56 km) |
| Iselin to Melres | 3,359.84 mi (5,407.14 km) |
| Iselin to Mira | 3,360.59 mi (5,408.35 km) |
| Iselin to Miranda do Corvo | 3,389.02 mi (5,454.09 km) |
| Iselin to Mirandela | 3,407.18 mi (5,483.32 km) |
| Iselin to Mogadouro | 3,433.46 mi (5,525.62 km) |
| Iselin to Moimenta da Beira | 3,399.98 mi (5,471.74 km) |
| Iselin to Moita | 3,397.54 mi (5,467.81 km) |
| Iselin to Moncao | 3,329.91 mi (5,358.98 km) |
