| Slawno to Marco de Canavezes | 1,455.67 mi (2,342.67 km) |
| Slawno to Marinha Grande | 1,556.83 mi (2,505.47 km) |
| Slawno to Massama | 1,620.90 mi (2,608.59 km) |
| Slawno to Matosinhos | 1,475.21 mi (2,374.12 km) |
| Slawno to Mealhada | 1,507.11 mi (2,425.46 km) |
| Slawno to Melgaco | 1,413.27 mi (2,274.44 km) |
| Slawno to Melres | 1,470.43 mi (2,366.42 km) |
| Slawno to Mira | 1,514.49 mi (2,437.34 km) |
| Slawno to Miranda do Corvo | 1,517.70 mi (2,442.50 km) |
| Slawno to Mirandela | 1,406.24 mi (2,263.12 km) |
| Slawno to Mogadouro | 1,397.77 mi (2,249.50 km) |
| Slawno to Moimenta da Beira | 1,447.17 mi (2,328.99 km) |
| Slawno to Moita | 1,616.55 mi (2,601.59 km) |
| Slawno to Moncao | 1,423.10 mi (2,290.25 km) |
| Slawno to Montalegre | 1,410.79 mi (2,270.45 km) |
