| Winterthur to Mangualde | 944.52 mi (1,520.07 km) |
| Winterthur to Marco de Canavezes | 938.55 mi (1,510.45 km) |
| Winterthur to Marinha Grande | 1,029.37 mi (1,656.60 km) |
| Winterthur to Massama | 1,086.29 mi (1,748.22 km) |
| Winterthur to Matosinhos | 962.51 mi (1,549.02 km) |
| Winterthur to Mealhada | 982.82 mi (1,581.70 km) |
| Winterthur to Melgaco | 909.84 mi (1,464.24 km) |
| Winterthur to Melres | 953.85 mi (1,535.07 km) |
| Winterthur to Mira | 992.96 mi (1,598.01 km) |
| Winterthur to Miranda do Corvo | 989.42 mi (1,592.32 km) |
| Winterthur to Mirandela | 885.12 mi (1,424.46 km) |
| Winterthur to Mogadouro | 870.98 mi (1,401.70 km) |
| Winterthur to Moimenta da Beira | 923.26 mi (1,485.84 km) |
| Winterthur to Moita | 1,078.97 mi (1,736.43 km) |
| Winterthur to Moncao | 920.81 mi (1,481.91 km) |
