| Omurtag to Marco de Canavezes | 1,763.31 mi (2,837.78 km) |
| Omurtag to Marinha Grande | 1,832.26 mi (2,948.73 km) |
| Omurtag to Massama | 1,872.73 mi (3,013.86 km) |
| Omurtag to Matosinhos | 1,790.81 mi (2,882.02 km) |
| Omurtag to Mealhada | 1,794.29 mi (2,887.63 km) |
| Omurtag to Melgaco | 1,752.43 mi (2,820.27 km) |
| Omurtag to Melres | 1,778.05 mi (2,861.49 km) |
| Omurtag to Mira | 1,807.46 mi (2,908.82 km) |
| Omurtag to Miranda do Corvo | 1,794.43 mi (2,887.86 km) |
| Omurtag to Mirandela | 1,709.33 mi (2,750.90 km) |
| Omurtag to Mogadouro | 1,688.83 mi (2,717.91 km) |
| Omurtag to Moimenta da Beira | 1,740.37 mi (2,800.86 km) |
| Omurtag to Moita | 1,860.67 mi (2,994.45 km) |
| Omurtag to Moncao | 1,763.77 mi (2,838.51 km) |
| Omurtag to Montalegre | 1,733.80 mi (2,790.28 km) |
