| Boussu to Montilla | 980.19 mi (1,577.46 km) |
| Boussu to Montmelo | 617.87 mi (994.37 km) |
| Boussu to Montornes del Valles | 618.48 mi (995.35 km) |
| Boussu to Montoro | 947.30 mi (1,524.53 km) |
| Boussu to Monzon | 613.45 mi (987.25 km) |
| Boussu to Mora | 828.55 mi (1,333.42 km) |
| Boussu to Moralzarzal | 770.85 mi (1,240.56 km) |
| Boussu to Moron de la Frontera | 1,027.06 mi (1,652.89 km) |
| Boussu to Mostoles | 789.73 mi (1,270.95 km) |
| Boussu to Motril | 1,012.55 mi (1,629.54 km) |
| Boussu to Muchamiel | 856.07 mi (1,377.71 km) |
| Boussu to Mula | 894.67 mi (1,439.83 km) |
| Boussu to Munguia | 580.48 mi (934.20 km) |
| Boussu to Murcia | 893.43 mi (1,437.84 km) |
| Boussu to Muro del Alcoy | 831.29 mi (1,337.83 km) |
