| Ottersberg to Marco de Canavezes | 1,151.33 mi (1,852.88 km) |
| Ottersberg to Marinha Grande | 1,254.91 mi (2,019.58 km) |
| Ottersberg to Massama | 1,321.14 mi (2,126.17 km) |
| Ottersberg to Matosinhos | 1,169.27 mi (1,881.76 km) |
| Ottersberg to Mealhada | 1,204.58 mi (1,938.59 km) |
| Ottersberg to Melgaco | 1,105.47 mi (1,779.08 km) |
| Ottersberg to Melres | 1,165.74 mi (1,876.07 km) |
| Ottersberg to Mira | 1,210.92 mi (1,948.79 km) |
| Ottersberg to Miranda do Corvo | 1,216.53 mi (1,957.81 km) |
| Ottersberg to Mirandela | 1,103.87 mi (1,776.51 km) |
| Ottersberg to Mogadouro | 1,097.60 mi (1,766.42 km) |
| Ottersberg to Moimenta da Beira | 1,145.24 mi (1,843.09 km) |
| Ottersberg to Moita | 1,318.13 mi (2,121.32 km) |
| Ottersberg to Moncao | 1,114.88 mi (1,794.23 km) |
| Ottersberg to Montalegre | 1,105.29 mi (1,778.80 km) |
