| Sluis to Montilla | 1,026.02 mi (1,651.22 km) |
| Sluis to Montmelo | 676.05 mi (1,088.00 km) |
| Sluis to Montornes del Valles | 676.70 mi (1,089.04 km) |
| Sluis to Montoro | 993.22 mi (1,598.43 km) |
| Sluis to Monzon | 666.67 mi (1,072.91 km) |
| Sluis to Mora | 873.87 mi (1,406.35 km) |
| Sluis to Moralzarzal | 814.15 mi (1,310.25 km) |
| Sluis to Moron de la Frontera | 1,071.59 mi (1,724.56 km) |
| Sluis to Mostoles | 833.87 mi (1,341.98 km) |
| Sluis to Motril | 1,061.56 mi (1,708.41 km) |
| Sluis to Muchamiel | 910.16 mi (1,464.76 km) |
| Sluis to Mula | 946.87 mi (1,523.85 km) |
| Sluis to Munguia | 621.72 mi (1,000.56 km) |
| Sluis to Murcia | 946.40 mi (1,523.08 km) |
| Sluis to Muro del Alcoy | 885.21 mi (1,424.60 km) |
