| Santander to Montevarchi | 769.54 mi (1,238.46 km) |
| Santander to Monticello Conte Otto | 770.92 mi (1,240.67 km) |
| Santander to Montichiari | 712.24 mi (1,146.24 km) |
| Santander to Montignoso | 697.67 mi (1,122.79 km) |
| Santander to Montopoli in Val d'Arno | 727.89 mi (1,171.43 km) |
| Santander to Monza | 659.91 mi (1,062.02 km) |
| Santander to Morbegno | 680.12 mi (1,094.55 km) |
| Santander to Mori | 744.13 mi (1,197.55 km) |
| Santander to Morlupo | 830.45 mi (1,336.48 km) |
| Santander to Morrovalle | 871.54 mi (1,402.60 km) |
| Santander to Mortara | 631.72 mi (1,016.66 km) |
| Santander to Mosciano Sant'Angelo | 891.95 mi (1,435.45 km) |
| Santander to Motta di Livenza | 821.36 mi (1,321.85 km) |
| Santander to Motta Sant'Anastasia | 1,066.05 mi (1,715.65 km) |
| Santander to Mottola | 1,083.90 mi (1,744.37 km) |
