| Portland to Lubbeek | 5,075.34 mi (8,167.96 km) |
| Portland to Lummen | 5,078.64 mi (8,173.28 km) |
| Portland to Maaseik | 5,086.54 mi (8,186.00 km) |
| Portland to Machelen | 5,063.47 mi (8,148.87 km) |
| Portland to Maldegem | 5,021.65 mi (8,081.57 km) |
| Portland to Malmedy | 5,131.20 mi (8,257.87 km) |
| Portland to Manage | 5,081.29 mi (8,177.55 km) |
| Portland to Marche-en-Famenne | 5,125.33 mi (8,248.41 km) |
| Portland to Mariakerke | 5,034.97 mi (8,102.99 km) |
| Portland to Mechelen | 5,057.99 mi (8,140.05 km) |
| Portland to Mechelen-aan-de-Maas | 5,090.44 mi (8,192.27 km) |
| Portland to Meerhout | 5,067.25 mi (8,154.95 km) |
| Portland to Meise | 5,059.55 mi (8,142.56 km) |
| Portland to Melle | 5,042.20 mi (8,114.64 km) |
| Portland to Melsele | 5,042.12 mi (8,114.51 km) |
