| Schleswig to Marco de Canavezes | 1,227.49 mi (1,975.46 km) |
| Schleswig to Marinha Grande | 1,332.37 mi (2,144.25 km) |
| Schleswig to Massama | 1,399.75 mi (2,252.68 km) |
| Schleswig to Matosinhos | 1,244.19 mi (2,002.33 km) |
| Schleswig to Mealhada | 1,281.82 mi (2,062.88 km) |
| Schleswig to Melgaco | 1,179.10 mi (1,897.58 km) |
| Schleswig to Melres | 1,241.60 mi (1,998.16 km) |
| Schleswig to Mira | 1,287.43 mi (2,071.92 km) |
| Schleswig to Miranda do Corvo | 1,294.59 mi (2,083.44 km) |
| Schleswig to Mirandela | 1,181.57 mi (1,901.55 km) |
| Schleswig to Mogadouro | 1,176.70 mi (1,893.72 km) |
| Schleswig to Moimenta da Beira | 1,223.07 mi (1,968.34 km) |
| Schleswig to Moita | 1,397.51 mi (2,249.08 km) |
| Schleswig to Moncao | 1,188.12 mi (1,912.10 km) |
| Schleswig to Montalegre | 1,180.78 mi (1,900.29 km) |
