| Harlingen to Montilla | 1,179.99 mi (1,899.02 km) |
| Harlingen to Montmelo | 816.23 mi (1,313.59 km) |
| Harlingen to Montornes del Valles | 816.79 mi (1,314.50 km) |
| Harlingen to Montoro | 1,147.15 mi (1,846.16 km) |
| Harlingen to Monzon | 815.12 mi (1,311.81 km) |
| Harlingen to Mora | 1,028.00 mi (1,654.40 km) |
| Harlingen to Moralzarzal | 968.85 mi (1,559.21 km) |
| Harlingen to Moron de la Frontera | 1,226.03 mi (1,973.10 km) |
| Harlingen to Mostoles | 988.36 mi (1,590.61 km) |
| Harlingen to Motril | 1,213.85 mi (1,953.50 km) |
| Harlingen to Muchamiel | 1,057.44 mi (1,701.79 km) |
| Harlingen to Mula | 1,096.41 mi (1,764.50 km) |
| Harlingen to Munguia | 776.70 mi (1,249.98 km) |
| Harlingen to Murcia | 1,095.09 mi (1,762.37 km) |
| Harlingen to Muro del Alcoy | 1,032.73 mi (1,662.02 km) |
