| Strand to Marco de Canavezes | 1,379.27 mi (2,219.72 km) |
| Strand to Marinha Grande | 1,486.50 mi (2,392.29 km) |
| Strand to Massama | 1,557.12 mi (2,505.94 km) |
| Strand to Matosinhos | 1,389.98 mi (2,236.96 km) |
| Strand to Mealhada | 1,436.46 mi (2,311.76 km) |
| Strand to Melgaco | 1,321.84 mi (2,127.30 km) |
| Strand to Melres | 1,391.57 mi (2,239.52 km) |
| Strand to Mira | 1,438.69 mi (2,315.34 km) |
| Strand to Miranda do Corvo | 1,452.52 mi (2,337.61 km) |
| Strand to Mirandela | 1,341.67 mi (2,159.21 km) |
| Strand to Mogadouro | 1,343.16 mi (2,161.60 km) |
| Strand to Moimenta da Beira | 1,382.29 mi (2,224.57 km) |
| Strand to Moita | 1,558.52 mi (2,508.19 km) |
| Strand to Moncao | 1,328.86 mi (2,138.59 km) |
| Strand to Montalegre | 1,331.34 mi (2,142.59 km) |
