| Opovo to Montilla | 1,392.17 mi (2,240.47 km) |
| Opovo to Montmelo | 943.27 mi (1,518.05 km) |
| Opovo to Montornes del Valles | 942.71 mi (1,517.14 km) |
| Opovo to Montoro | 1,365.64 mi (2,197.78 km) |
| Opovo to Monzon | 1,034.78 mi (1,665.31 km) |
| Opovo to Mora | 1,284.65 mi (2,067.44 km) |
| Opovo to Moralzarzal | 1,266.88 mi (2,038.84 km) |
| Opovo to Moron de la Frontera | 1,447.02 mi (2,328.76 km) |
| Opovo to Mostoles | 1,270.89 mi (2,045.30 km) |
| Opovo to Motril | 1,369.04 mi (2,203.26 km) |
| Opovo to Muchamiel | 1,165.71 mi (1,876.03 km) |
| Opovo to Mula | 1,227.67 mi (1,975.75 km) |
| Opovo to Munguia | 1,154.88 mi (1,858.60 km) |
| Opovo to Murcia | 1,212.70 mi (1,951.66 km) |
| Opovo to Muro del Alcoy | 1,152.88 mi (1,855.38 km) |
