| Loughton to Mangualde | 849.22 mi (1,366.69 km) |
| Loughton to Marco de Canavezes | 821.21 mi (1,321.61 km) |
| Loughton to Marinha Grande | 928.35 mi (1,494.04 km) |
| Loughton to Massama | 998.43 mi (1,606.81 km) |
| Loughton to Matosinhos | 833.85 mi (1,341.95 km) |
| Loughton to Mealhada | 877.92 mi (1,412.88 km) |
| Loughton to Melgaco | 766.30 mi (1,233.24 km) |
| Loughton to Melres | 834.12 mi (1,342.38 km) |
| Loughton to Mira | 881.12 mi (1,418.02 km) |
| Loughton to Miranda do Corvo | 893.22 mi (1,437.51 km) |
| Loughton to Mirandela | 781.36 mi (1,257.47 km) |
| Loughton to Mogadouro | 781.72 mi (1,258.06 km) |
| Loughton to Moimenta da Beira | 822.36 mi (1,323.46 km) |
| Loughton to Moita | 998.95 mi (1,607.65 km) |
| Loughton to Moncao | 774.10 mi (1,245.79 km) |
