| Castellana Grotte to Montilla | 1,185.50 mi (1,907.88 km) |
| Castellana Grotte to Montmelo | 775.67 mi (1,248.31 km) |
| Castellana Grotte to Montornes del Valles | 774.81 mi (1,246.93 km) |
| Castellana Grotte to Montoro | 1,163.60 mi (1,872.64 km) |
| Castellana Grotte to Monzon | 881.31 mi (1,418.34 km) |
| Castellana Grotte to Mora | 1,104.36 mi (1,777.30 km) |
| Castellana Grotte to Moralzarzal | 1,103.23 mi (1,775.48 km) |
| Castellana Grotte to Moron de la Frontera | 1,238.24 mi (1,992.75 km) |
| Castellana Grotte to Mostoles | 1,101.29 mi (1,772.35 km) |
| Castellana Grotte to Motril | 1,146.51 mi (1,845.13 km) |
| Castellana Grotte to Muchamiel | 950.68 mi (1,529.98 km) |
| Castellana Grotte to Mula | 1,012.35 mi (1,629.23 km) |
| Castellana Grotte to Munguia | 1,037.23 mi (1,669.27 km) |
| Castellana Grotte to Murcia | 994.75 mi (1,600.90 km) |
| Castellana Grotte to Muro del Alcoy | 943.57 mi (1,518.53 km) |
