| Otopeni to Montilla | 1,659.14 mi (2,670.13 km) |
| Otopeni to Montmelo | 1,215.81 mi (1,956.66 km) |
| Otopeni to Montornes del Valles | 1,215.20 mi (1,955.67 km) |
| Otopeni to Montoro | 1,633.68 mi (2,629.15 km) |
| Otopeni to Monzon | 1,309.95 mi (2,108.16 km) |
| Otopeni to Mora | 1,556.97 mi (2,505.70 km) |
| Otopeni to Moralzarzal | 1,541.74 mi (2,481.19 km) |
| Otopeni to Moron de la Frontera | 1,713.65 mi (2,757.86 km) |
| Otopeni to Mostoles | 1,544.92 mi (2,486.30 km) |
| Otopeni to Motril | 1,631.28 mi (2,625.29 km) |
| Otopeni to Muchamiel | 1,429.21 mi (2,300.09 km) |
| Otopeni to Mula | 1,491.44 mi (2,400.25 km) |
| Otopeni to Munguia | 1,433.23 mi (2,306.55 km) |
| Otopeni to Murcia | 1,475.60 mi (2,374.75 km) |
| Otopeni to Muro del Alcoy | 1,417.93 mi (2,281.94 km) |
