| Hafnarfjordhur to Montilla | 1,962.19 mi (3,157.84 km) |
| Hafnarfjordhur to Montmelo | 1,828.11 mi (2,942.06 km) |
| Hafnarfjordhur to Montornes del Valles | 1,829.12 mi (2,943.68 km) |
| Hafnarfjordhur to Montoro | 1,937.22 mi (3,117.65 km) |
| Hafnarfjordhur to Monzon | 1,763.74 mi (2,838.47 km) |
| Hafnarfjordhur to Mora | 1,836.66 mi (2,955.82 km) |
| Hafnarfjordhur to Moralzarzal | 1,768.41 mi (2,845.98 km) |
| Hafnarfjordhur to Moron de la Frontera | 1,980.89 mi (3,187.93 km) |
| Hafnarfjordhur to Mostoles | 1,792.52 mi (2,884.79 km) |
| Hafnarfjordhur to Motril | 2,034.60 mi (3,274.37 km) |
| Hafnarfjordhur to Muchamiel | 1,977.19 mi (3,181.98 km) |
| Hafnarfjordhur to Mula | 1,982.89 mi (3,191.15 km) |
| Hafnarfjordhur to Munguia | 1,613.52 mi (2,596.71 km) |
| Hafnarfjordhur to Murcia | 1,992.84 mi (3,207.16 km) |
| Hafnarfjordhur to Muro del Alcoy | 1,953.55 mi (3,143.94 km) |
