| Santa Maria a Monte to Marco de Canavezes | 973.68 mi (1,566.99 km) |
| Santa Maria a Monte to Marinha Grande | 1,044.97 mi (1,681.72 km) |
| Santa Maria a Monte to Massama | 1,088.71 mi (1,752.11 km) |
| Santa Maria a Monte to Matosinhos | 1,001.10 mi (1,611.12 km) |
| Santa Maria a Monte to Mealhada | 1,005.71 mi (1,618.53 km) |
| Santa Maria a Monte to Melgaco | 963.09 mi (1,549.94 km) |
| Santa Maria a Monte to Melres | 988.46 mi (1,590.78 km) |
| Santa Maria a Monte to Mira | 1,018.63 mi (1,639.33 km) |
| Santa Maria a Monte to Miranda do Corvo | 1,006.62 mi (1,619.99 km) |
| Santa Maria a Monte to Mirandela | 919.64 mi (1,480.01 km) |
| Santa Maria a Monte to Mogadouro | 899.34 mi (1,447.35 km) |
| Santa Maria a Monte to Moimenta da Beira | 951.08 mi (1,530.62 km) |
| Santa Maria a Monte to Moita | 1,077.57 mi (1,734.17 km) |
| Santa Maria a Monte to Moncao | 974.42 mi (1,568.18 km) |
| Santa Maria a Monte to Montalegre | 944.11 mi (1,519.39 km) |
