| Shannon to Montilla | 1,065.11 mi (1,714.13 km) |
| Shannon to Montmelo | 929.11 mi (1,495.25 km) |
| Shannon to Montornes del Valles | 930.16 mi (1,496.95 km) |
| Shannon to Montoro | 1,038.03 mi (1,670.54 km) |
| Shannon to Monzon | 857.13 mi (1,379.41 km) |
| Shannon to Mora | 932.02 mi (1,499.94 km) |
| Shannon to Moralzarzal | 863.07 mi (1,388.98 km) |
| Shannon to Moron de la Frontera | 1,089.84 mi (1,753.93 km) |
| Shannon to Mostoles | 887.29 mi (1,427.95 km) |
| Shannon to Motril | 1,133.04 mi (1,823.46 km) |
| Shannon to Muchamiel | 1,067.02 mi (1,717.20 km) |
| Shannon to Mula | 1,073.73 mi (1,728.00 km) |
| Shannon to Munguia | 703.34 mi (1,131.92 km) |
| Shannon to Murcia | 1,083.22 mi (1,743.27 km) |
| Shannon to Muro del Alcoy | 1,043.37 mi (1,679.15 km) |
