| Opwijk to Montilla | 1,020.68 mi (1,642.63 km) |
| Opwijk to Montmelo | 656.77 mi (1,056.97 km) |
| Opwijk to Montornes del Valles | 657.36 mi (1,057.92 km) |
| Opwijk to Montoro | 987.80 mi (1,589.70 km) |
| Opwijk to Monzon | 653.75 mi (1,052.11 km) |
| Opwijk to Mora | 869.00 mi (1,398.51 km) |
| Opwijk to Moralzarzal | 811.10 mi (1,305.34 km) |
| Opwijk to Moron de la Frontera | 1,067.46 mi (1,717.91 km) |
| Opwijk to Mostoles | 830.07 mi (1,335.87 km) |
| Opwijk to Motril | 1,053.12 mi (1,694.84 km) |
| Opwijk to Muchamiel | 896.18 mi (1,442.26 km) |
| Opwijk to Mula | 935.05 mi (1,504.82 km) |
| Opwijk to Munguia | 620.41 mi (998.45 km) |
| Opwijk to Murcia | 933.72 mi (1,502.68 km) |
| Opwijk to Muro del Alcoy | 871.44 mi (1,402.45 km) |
