| Ouistreham to Marco de Canavezes | 677.67 mi (1,090.61 km) |
| Ouistreham to Marinha Grande | 783.81 mi (1,261.42 km) |
| Ouistreham to Massama | 852.60 mi (1,372.12 km) |
| Ouistreham to Matosinhos | 693.06 mi (1,115.37 km) |
| Ouistreham to Mealhada | 733.13 mi (1,179.87 km) |
| Ouistreham to Melgaco | 627.16 mi (1,009.32 km) |
| Ouistreham to Melres | 691.39 mi (1,112.69 km) |
| Ouistreham to Mira | 737.80 mi (1,187.37 km) |
| Ouistreham to Miranda do Corvo | 747.07 mi (1,202.29 km) |
| Ouistreham to Mirandela | 634.11 mi (1,020.50 km) |
| Ouistreham to Mogadouro | 631.83 mi (1,016.84 km) |
| Ouistreham to Moimenta da Beira | 675.57 mi (1,087.22 km) |
| Ouistreham to Moita | 851.70 mi (1,370.69 km) |
| Ouistreham to Moncao | 635.94 mi (1,023.45 km) |
| Ouistreham to Montalegre | 630.38 mi (1,014.51 km) |
