| Littleport to Mangualde | 902.91 mi (1,453.09 km) |
| Littleport to Marco de Canavezes | 874.12 mi (1,406.75 km) |
| Littleport to Marinha Grande | 981.34 mi (1,579.31 km) |
| Littleport to Massama | 1,051.63 mi (1,692.43 km) |
| Littleport to Matosinhos | 886.11 mi (1,426.06 km) |
| Littleport to Mealhada | 931.02 mi (1,498.34 km) |
| Littleport to Melgaco | 818.32 mi (1,316.96 km) |
| Littleport to Melres | 886.82 mi (1,427.20 km) |
| Littleport to Mira | 933.88 mi (1,502.94 km) |
| Littleport to Miranda do Corvo | 946.62 mi (1,523.43 km) |
| Littleport to Mirandela | 835.13 mi (1,344.01 km) |
| Littleport to Mogadouro | 836.05 mi (1,345.49 km) |
| Littleport to Moimenta da Beira | 875.98 mi (1,409.75 km) |
| Littleport to Moita | 1,052.47 mi (1,693.79 km) |
| Littleport to Moncao | 825.88 mi (1,329.12 km) |
