| Ommen to Marco de Canavezes | 1,038.65 mi (1,671.54 km) |
| Ommen to Marinha Grande | 1,143.27 mi (1,839.91 km) |
| Ommen to Massama | 1,210.46 mi (1,948.05 km) |
| Ommen to Matosinhos | 1,055.70 mi (1,698.99 km) |
| Ommen to Mealhada | 1,092.75 mi (1,758.60 km) |
| Ommen to Melgaco | 991.02 mi (1,594.89 km) |
| Ommen to Melres | 1,052.84 mi (1,694.38 km) |
| Ommen to Mira | 1,098.52 mi (1,767.90 km) |
| Ommen to Miranda do Corvo | 1,105.37 mi (1,778.92 km) |
| Ommen to Mirandela | 992.39 mi (1,597.10 km) |
| Ommen to Mogadouro | 987.33 mi (1,588.95 km) |
| Ommen to Moimenta da Beira | 1,033.88 mi (1,663.86 km) |
| Ommen to Moita | 1,208.14 mi (1,944.31 km) |
| Ommen to Moncao | 1,000.18 mi (1,609.64 km) |
| Ommen to Montalegre | 992.10 mi (1,596.64 km) |
