| South Bend to Mangualde | 3,933.18 mi (6,329.84 km) |
| South Bend to Marco de Canavezes | 3,896.06 mi (6,270.11 km) |
| South Bend to Marinha Grande | 3,907.87 mi (6,289.11 km) |
| South Bend to Massama | 3,925.61 mi (6,317.66 km) |
| South Bend to Matosinhos | 3,870.94 mi (6,229.67 km) |
| South Bend to Mealhada | 3,908.95 mi (6,290.85 km) |
| South Bend to Melgaco | 3,860.15 mi (6,212.30 km) |
| South Bend to Melres | 3,888.50 mi (6,257.94 km) |
| South Bend to Mira | 3,894.23 mi (6,267.16 km) |
| South Bend to Miranda do Corvo | 3,923.84 mi (6,314.82 km) |
| South Bend to Mirandela | 3,930.07 mi (6,324.83 km) |
| South Bend to Mogadouro | 3,956.23 mi (6,366.94 km) |
| South Bend to Moimenta da Beira | 3,927.32 mi (6,320.41 km) |
| South Bend to Moita | 3,942.92 mi (6,345.52 km) |
| South Bend to Moncao | 3,851.90 mi (6,199.03 km) |
