| Kostinbrod to Marco de Canavezes | 1,605.21 mi (2,583.33 km) |
| Kostinbrod to Marinha Grande | 1,672.37 mi (2,691.42 km) |
| Kostinbrod to Massama | 1,711.85 mi (2,754.96 km) |
| Kostinbrod to Matosinhos | 1,632.88 mi (2,627.87 km) |
| Kostinbrod to Mealhada | 1,635.08 mi (2,631.41 km) |
| Kostinbrod to Melgaco | 1,596.01 mi (2,568.52 km) |
| Kostinbrod to Melres | 1,619.84 mi (2,606.88 km) |
| Kostinbrod to Mira | 1,648.41 mi (2,652.86 km) |
| Kostinbrod to Miranda do Corvo | 1,634.80 mi (2,630.96 km) |
| Kostinbrod to Mirandela | 1,551.41 mi (2,496.75 km) |
| Kostinbrod to Mogadouro | 1,530.50 mi (2,463.10 km) |
| Kostinbrod to Moimenta da Beira | 1,581.77 mi (2,545.61 km) |
| Kostinbrod to Moita | 1,699.61 mi (2,735.25 km) |
| Kostinbrod to Moncao | 1,607.33 mi (2,586.75 km) |
| Kostinbrod to Montalegre | 1,576.67 mi (2,537.41 km) |
