| Opava to Montilla | 1,402.60 mi (2,257.27 km) |
| Opava to Montmelo | 948.24 mi (1,526.05 km) |
| Opava to Montornes del Valles | 948.09 mi (1,525.80 km) |
| Opava to Montoro | 1,371.91 mi (2,207.87 km) |
| Opava to Monzon | 1,012.21 mi (1,629.00 km) |
| Opava to Mora | 1,269.94 mi (2,043.77 km) |
| Opava to Moralzarzal | 1,233.89 mi (1,985.76 km) |
| Opava to Moron de la Frontera | 1,456.95 mi (2,344.74 km) |
| Opava to Mostoles | 1,244.56 mi (2,002.93 km) |
| Opava to Motril | 1,401.30 mi (2,255.17 km) |
| Opava to Muchamiel | 1,202.81 mi (1,935.73 km) |
| Opava to Mula | 1,260.21 mi (2,028.11 km) |
| Opava to Munguia | 1,079.57 mi (1,737.41 km) |
| Opava to Murcia | 1,249.71 mi (2,011.22 km) |
| Opava to Muro del Alcoy | 1,183.97 mi (1,905.41 km) |
