| Portugalete to Lubbeek | 639.29 mi (1,028.84 km) |
| Portugalete to Lummen | 654.54 mi (1,053.38 km) |
| Portugalete to Maaseik | 677.18 mi (1,089.81 km) |
| Portugalete to Machelen | 630.15 mi (1,014.13 km) |
| Portugalete to Maldegem | 622.36 mi (1,001.59 km) |
| Portugalete to Malmedy | 649.18 mi (1,044.75 km) |
| Portugalete to Manage | 602.14 mi (969.06 km) |
| Portugalete to Marche-en-Famenne | 618.38 mi (995.18 km) |
| Portugalete to Mariakerke | 620.53 mi (998.64 km) |
| Portugalete to Mechelen | 637.82 mi (1,026.47 km) |
| Portugalete to Mechelen-aan-de-Maas | 669.32 mi (1,077.16 km) |
| Portugalete to Meerhout | 659.46 mi (1,061.29 km) |
| Portugalete to Meise | 628.77 mi (1,011.90 km) |
| Portugalete to Melle | 619.28 mi (996.63 km) |
| Portugalete to Melsele | 643.65 mi (1,035.86 km) |
