| Middle Island to Montijo | 3,431.19 mi (5,521.96 km) |
| Middle Island to Montilla | 3,567.85 mi (5,741.90 km) |
| Middle Island to Montmelo | 3,775.08 mi (6,075.41 km) |
| Middle Island to Montornes del Valles | 3,776.19 mi (6,077.18 km) |
| Middle Island to Montoro | 3,566.84 mi (5,740.28 km) |
| Middle Island to Monzon | 3,668.76 mi (5,904.30 km) |
| Middle Island to Mora | 3,546.36 mi (5,707.32 km) |
| Middle Island to Moralzarzal | 3,508.45 mi (5,646.31 km) |
| Middle Island to Moron de la Frontera | 3,541.76 mi (5,699.91 km) |
| Middle Island to Mostoles | 3,523.16 mi (5,669.98 km) |
| Middle Island to Motril | 3,648.71 mi (5,872.02 km) |
| Middle Island to Muchamiel | 3,745.49 mi (6,027.79 km) |
| Middle Island to Mula | 3,706.78 mi (5,965.49 km) |
| Middle Island to Munguia | 3,487.12 mi (5,611.98 km) |
| Middle Island to Murcia | 3,725.99 mi (5,996.40 km) |
