| Koper to Mangualde | 1,133.32 mi (1,823.90 km) |
| Koper to Marco de Canavezes | 1,135.83 mi (1,827.94 km) |
| Koper to Marinha Grande | 1,214.67 mi (1,954.82 km) |
| Koper to Massama | 1,262.99 mi (2,032.59 km) |
| Koper to Matosinhos | 1,162.22 mi (1,870.42 km) |
| Koper to Mealhada | 1,172.58 mi (1,887.08 km) |
| Koper to Melgaco | 1,118.08 mi (1,799.38 km) |
| Koper to Melres | 1,150.95 mi (1,852.27 km) |
| Koper to Mira | 1,184.64 mi (1,906.49 km) |
| Koper to Miranda do Corvo | 1,175.45 mi (1,891.71 km) |
| Koper to Mirandela | 1,081.43 mi (1,740.40 km) |
| Koper to Mogadouro | 1,063.17 mi (1,711.00 km) |
| Koper to Moimenta da Beira | 1,115.67 mi (1,795.50 km) |
| Koper to Moita | 1,252.93 mi (2,016.40 km) |
| Koper to Moncao | 1,129.39 mi (1,817.58 km) |
