| Salt to Montijo | 537.65 mi (865.27 km) |
| Salt to Montilla | 497.08 mi (799.97 km) |
| Salt to Montmelo | 40.21 mi (64.71 km) |
| Salt to Montornes del Valles | 40.14 mi (64.59 km) |
| Salt to Montoro | 467.62 mi (752.57 km) |
| Salt to Monzon | 133.60 mi (215.00 km) |
| Salt to Mora | 377.86 mi (608.10 km) |
| Salt to Moralzarzal | 361.86 mi (582.35 km) |
| Salt to Moron de la Frontera | 551.99 mi (888.35 km) |
| Salt to Mostoles | 364.22 mi (586.15 km) |
| Salt to Motril | 493.49 mi (794.20 km) |
| Salt to Muchamiel | 299.47 mi (481.95 km) |
| Salt to Mula | 353.68 mi (569.19 km) |
| Salt to Munguia | 301.66 mi (485.48 km) |
| Salt to Murcia | 344.93 mi (555.11 km) |
