| Ostrhauderfehn to Marco de Canavezes | 1,103.60 mi (1,776.07 km) |
| Ostrhauderfehn to Marinha Grande | 1,208.13 mi (1,944.29 km) |
| Ostrhauderfehn to Massama | 1,275.22 mi (2,052.26 km) |
| Ostrhauderfehn to Matosinhos | 1,120.70 mi (1,803.60 km) |
| Ostrhauderfehn to Mealhada | 1,157.62 mi (1,863.01 km) |
| Ostrhauderfehn to Melgaco | 1,056.05 mi (1,699.54 km) |
| Ostrhauderfehn to Melres | 1,117.80 mi (1,798.93 km) |
| Ostrhauderfehn to Mira | 1,163.45 mi (1,872.39 km) |
| Ostrhauderfehn to Miranda do Corvo | 1,170.17 mi (1,883.21 km) |
| Ostrhauderfehn to Mirandela | 1,057.22 mi (1,701.43 km) |
| Ostrhauderfehn to Mogadouro | 1,052.01 mi (1,693.04 km) |
| Ostrhauderfehn to Moimenta da Beira | 1,098.70 mi (1,768.18 km) |
| Ostrhauderfehn to Moita | 1,272.80 mi (2,048.38 km) |
| Ostrhauderfehn to Moncao | 1,065.22 mi (1,714.30 km) |
| Ostrhauderfehn to Montalegre | 1,057.08 mi (1,701.21 km) |
