| Appenzell to Mangualde | 969.55 mi (1,560.33 km) |
| Appenzell to Marco de Canavezes | 964.64 mi (1,552.44 km) |
| Appenzell to Marinha Grande | 1,054.11 mi (1,696.43 km) |
| Appenzell to Massama | 1,110.06 mi (1,786.46 km) |
| Appenzell to Matosinhos | 988.95 mi (1,591.57 km) |
| Appenzell to Mealhada | 1,008.04 mi (1,622.29 km) |
| Appenzell to Melgaco | 937.26 mi (1,508.37 km) |
| Appenzell to Melres | 979.94 mi (1,577.06 km) |
| Appenzell to Mira | 1,018.44 mi (1,639.02 km) |
| Appenzell to Miranda do Corvo | 1,014.18 mi (1,632.17 km) |
| Appenzell to Mirandela | 910.97 mi (1,466.07 km) |
| Appenzell to Mogadouro | 896.27 mi (1,442.41 km) |
| Appenzell to Moimenta da Beira | 948.70 mi (1,526.78 km) |
| Appenzell to Moita | 1,102.38 mi (1,774.10 km) |
| Appenzell to Moncao | 948.30 mi (1,526.13 km) |
