| Korydallos to Marco de Canavezes | 1,698.16 mi (2,732.92 km) |
| Korydallos to Marinha Grande | 1,747.46 mi (2,812.27 km) |
| Korydallos to Massama | 1,774.68 mi (2,856.07 km) |
| Korydallos to Matosinhos | 1,726.72 mi (2,778.88 km) |
| Korydallos to Mealhada | 1,717.67 mi (2,764.32 km) |
| Korydallos to Melgaco | 1,701.86 mi (2,738.88 km) |
| Korydallos to Melres | 1,711.61 mi (2,754.56 km) |
| Korydallos to Mira | 1,732.22 mi (2,787.73 km) |
| Korydallos to Miranda do Corvo | 1,713.32 mi (2,757.32 km) |
| Korydallos to Mirandela | 1,647.09 mi (2,650.73 km) |
| Korydallos to Mogadouro | 1,623.34 mi (2,612.51 km) |
| Korydallos to Moimenta da Beira | 1,671.03 mi (2,689.26 km) |
| Korydallos to Moita | 1,760.27 mi (2,832.89 km) |
| Korydallos to Moncao | 1,712.86 mi (2,756.58 km) |
| Korydallos to Montalegre | 1,677.91 mi (2,700.33 km) |
