| Helensburgh to Montijo | 1,185.11 mi (1,907.25 km) |
| Helensburgh to Montilla | 1,273.63 mi (2,049.70 km) |
| Helensburgh to Montmelo | 1,047.28 mi (1,685.43 km) |
| Helensburgh to Montornes del Valles | 1,048.19 mi (1,686.90 km) |
| Helensburgh to Montoro | 1,243.78 mi (2,001.67 km) |
| Helensburgh to Monzon | 999.30 mi (1,608.21 km) |
| Helensburgh to Mora | 1,129.32 mi (1,817.46 km) |
| Helensburgh to Moralzarzal | 1,060.57 mi (1,706.82 km) |
| Helensburgh to Moron de la Frontera | 1,305.90 mi (2,101.65 km) |
| Helensburgh to Mostoles | 1,084.32 mi (1,745.05 km) |
| Helensburgh to Motril | 1,332.40 mi (2,144.30 km) |
| Helensburgh to Muchamiel | 1,232.19 mi (1,983.02 km) |
| Helensburgh to Mula | 1,250.94 mi (2,013.20 km) |
| Helensburgh to Munguia | 878.82 mi (1,414.32 km) |
| Helensburgh to Murcia | 1,256.88 mi (2,022.75 km) |
