| Beccles to Mangualde | 929.49 mi (1,495.87 km) |
| Beccles to Marco de Canavezes | 902.48 mi (1,452.40 km) |
| Beccles to Marinha Grande | 1,009.46 mi (1,624.58 km) |
| Beccles to Massama | 1,079.24 mi (1,736.86 km) |
| Beccles to Matosinhos | 915.76 mi (1,473.77 km) |
| Beccles to Mealhada | 958.92 mi (1,543.24 km) |
| Beccles to Melgaco | 848.46 mi (1,365.46 km) |
| Beccles to Melres | 915.59 mi (1,473.50 km) |
| Beccles to Mira | 962.50 mi (1,548.99 km) |
| Beccles to Miranda do Corvo | 973.86 mi (1,567.27 km) |
| Beccles to Mirandela | 861.55 mi (1,386.53 km) |
| Beccles to Mogadouro | 861.02 mi (1,385.68 km) |
| Beccles to Moimenta da Beira | 902.73 mi (1,452.81 km) |
| Beccles to Moita | 1,079.33 mi (1,737.02 km) |
| Beccles to Moncao | 856.45 mi (1,378.32 km) |
