| Bomporto to Marco de Canavezes | 997.96 mi (1,606.06 km) |
| Bomporto to Marinha Grande | 1,074.50 mi (1,729.24 km) |
| Bomporto to Massama | 1,121.63 mi (1,805.10 km) |
| Bomporto to Matosinhos | 1,024.74 mi (1,649.16 km) |
| Bomporto to Mealhada | 1,033.21 mi (1,662.79 km) |
| Bomporto to Melgaco | 982.77 mi (1,581.62 km) |
| Bomporto to Melres | 1,012.98 mi (1,630.24 km) |
| Bomporto to Mira | 1,045.55 mi (1,682.66 km) |
| Bomporto to Miranda do Corvo | 1,035.50 mi (1,666.47 km) |
| Bomporto to Mirandela | 943.61 mi (1,518.59 km) |
| Bomporto to Mogadouro | 924.64 mi (1,488.06 km) |
| Bomporto to Moimenta da Beira | 976.96 mi (1,572.27 km) |
| Bomporto to Moita | 1,111.31 mi (1,788.48 km) |
| Bomporto to Moncao | 994.11 mi (1,599.86 km) |
| Bomporto to Montalegre | 965.72 mi (1,554.18 km) |
