| Onate to Mangualde | 322.24 mi (518.59 km) |
| Onate to Marco de Canavezes | 320.39 mi (515.61 km) |
| Onate to Marinha Grande | 406.70 mi (654.52 km) |
| Onate to Massama | 464.05 mi (746.82 km) |
| Onate to Matosinhos | 346.40 mi (557.48 km) |
| Onate to Mealhada | 360.94 mi (580.87 km) |
| Onate to Melgaco | 304.24 mi (489.63 km) |
| Onate to Melres | 335.60 mi (540.10 km) |
| Onate to Mira | 371.80 mi (598.36 km) |
| Onate to Miranda do Corvo | 366.77 mi (590.25 km) |
| Onate to Mirandela | 266.05 mi (428.17 km) |
| Onate to Mogadouro | 249.48 mi (401.50 km) |
| Onate to Moimenta da Beira | 302.12 mi (486.21 km) |
| Onate to Moita | 457.49 mi (736.25 km) |
| Onate to Moncao | 315.58 mi (507.87 km) |
