| Boussu to Marco de Canavezes | 857.82 mi (1,380.53 km) |
| Boussu to Marinha Grande | 961.81 mi (1,547.89 km) |
| Boussu to Massama | 1,028.55 mi (1,655.29 km) |
| Boussu to Matosinhos | 875.58 mi (1,409.10 km) |
| Boussu to Mealhada | 911.39 mi (1,466.74 km) |
| Boussu to Melgaco | 811.73 mi (1,306.36 km) |
| Boussu to Melres | 872.17 mi (1,403.62 km) |
| Boussu to Mira | 917.51 mi (1,476.60 km) |
| Boussu to Miranda do Corvo | 923.65 mi (1,486.48 km) |
| Boussu to Mirandela | 810.81 mi (1,304.88 km) |
| Boussu to Mogadouro | 805.20 mi (1,295.85 km) |
| Boussu to Moimenta da Beira | 852.25 mi (1,371.56 km) |
| Boussu to Moita | 1,025.96 mi (1,651.12 km) |
| Boussu to Moncao | 821.17 mi (1,321.54 km) |
| Boussu to Montalegre | 811.65 mi (1,306.23 km) |
