| Ostend to Marco de Canavezes | 870.70 mi (1,401.26 km) |
| Ostend to Marinha Grande | 976.31 mi (1,571.22 km) |
| Ostend to Massama | 1,044.50 mi (1,680.96 km) |
| Ostend to Matosinhos | 886.70 mi (1,427.01 km) |
| Ostend to Mealhada | 925.66 mi (1,489.71 km) |
| Ostend to Melgaco | 821.16 mi (1,321.54 km) |
| Ostend to Melres | 884.61 mi (1,423.64 km) |
| Ostend to Mira | 930.77 mi (1,497.92 km) |
| Ostend to Miranda do Corvo | 939.06 mi (1,511.28 km) |
| Ostend to Mirandela | 825.98 mi (1,329.28 km) |
| Ostend to Mogadouro | 822.44 mi (1,323.59 km) |
| Ostend to Moimenta da Beira | 867.49 mi (1,396.10 km) |
| Ostend to Moita | 1,043.00 mi (1,678.54 km) |
| Ostend to Moncao | 830.06 mi (1,335.85 km) |
| Ostend to Montalegre | 823.66 mi (1,325.56 km) |
