| Prescot to Mangualde | 915.74 mi (1,473.74 km) |
| Prescot to Marco de Canavezes | 881.70 mi (1,418.96 km) |
| Prescot to Marinha Grande | 987.95 mi (1,589.96 km) |
| Prescot to Massama | 1,058.97 mi (1,704.24 km) |
| Prescot to Matosinhos | 889.22 mi (1,431.07 km) |
| Prescot to Mealhada | 939.15 mi (1,511.41 km) |
| Prescot to Melgaco | 821.07 mi (1,321.38 km) |
| Prescot to Melres | 892.82 mi (1,436.85 km) |
| Prescot to Mira | 939.61 mi (1,512.16 km) |
| Prescot to Miranda do Corvo | 956.62 mi (1,539.53 km) |
| Prescot to Mirandela | 849.73 mi (1,367.50 km) |
| Prescot to Mogadouro | 855.16 mi (1,376.24 km) |
| Prescot to Moimenta da Beira | 888.73 mi (1,430.27 km) |
| Prescot to Moita | 1,062.22 mi (1,709.48 km) |
| Prescot to Moncao | 827.01 mi (1,330.94 km) |
