| Santander to Mechernich | 695.59 mi (1,119.44 km) |
| Santander to Meckenbeuren | 708.39 mi (1,140.05 km) |
| Santander to Meckenheim | 709.29 mi (1,141.49 km) |
| Santander to Meerane | 916.03 mi (1,474.21 km) |
| Santander to Meerbusch | 727.22 mi (1,170.35 km) |
| Santander to Meine | 902.88 mi (1,453.04 km) |
| Santander to Meinerzhagen | 751.38 mi (1,209.23 km) |
| Santander to Meiningen | 827.64 mi (1,331.96 km) |
| Santander to Meissen | 965.40 mi (1,553.67 km) |
| Santander to Meitingen | 783.35 mi (1,260.69 km) |
| Santander to Melle | 823.73 mi (1,325.66 km) |
| Santander to Melsungen | 817.85 mi (1,316.21 km) |
| Santander to Memmelsdorf | 827.79 mi (1,332.19 km) |
| Santander to Memmingen | 742.09 mi (1,194.28 km) |
| Santander to Mendig | 706.99 mi (1,137.79 km) |
