| Brea to Mangualde | 5,635.57 mi (9,069.57 km) |
| Brea to Marco de Canavezes | 5,594.97 mi (9,004.24 km) |
| Brea to Marinha Grande | 5,622.76 mi (9,048.95 km) |
| Brea to Massama | 5,649.94 mi (9,092.70 km) |
| Brea to Matosinhos | 5,572.30 mi (8,967.75 km) |
| Brea to Mealhada | 5,616.35 mi (9,038.64 km) |
| Brea to Melgaco | 5,550.82 mi (8,933.18 km) |
| Brea to Melres | 5,589.59 mi (8,995.58 km) |
| Brea to Mira | 5,602.43 mi (9,016.24 km) |
| Brea to Miranda do Corvo | 5,633.19 mi (9,065.74 km) |
| Brea to Mirandela | 5,621.72 mi (9,047.28 km) |
| Brea to Mogadouro | 5,647.12 mi (9,088.16 km) |
| Brea to Moimenta da Beira | 5,625.66 mi (9,053.62 km) |
| Brea to Moita | 5,666.91 mi (9,120.00 km) |
| Brea to Moncao | 5,543.97 mi (8,922.15 km) |
