| Shoreham-by-Sea to Mangualde | 792.79 mi (1,275.88 km) |
| Shoreham-by-Sea to Marco de Canavezes | 765.48 mi (1,231.93 km) |
| Shoreham-by-Sea to Marinha Grande | 872.51 mi (1,404.17 km) |
| Shoreham-by-Sea to Massama | 942.37 mi (1,516.59 km) |
| Shoreham-by-Sea to Matosinhos | 778.70 mi (1,253.20 km) |
| Shoreham-by-Sea to Mealhada | 821.99 mi (1,322.87 km) |
| Shoreham-by-Sea to Melgaco | 711.42 mi (1,144.91 km) |
| Shoreham-by-Sea to Melres | 778.57 mi (1,252.98 km) |
| Shoreham-by-Sea to Mira | 825.49 mi (1,328.49 km) |
| Shoreham-by-Sea to Miranda do Corvo | 837.04 mi (1,347.08 km) |
| Shoreham-by-Sea to Mirandela | 724.88 mi (1,166.58 km) |
| Shoreham-by-Sea to Mogadouro | 724.77 mi (1,166.40 km) |
| Shoreham-by-Sea to Moimenta da Beira | 766.00 mi (1,232.75 km) |
| Shoreham-by-Sea to Moita | 942.61 mi (1,516.98 km) |
| Shoreham-by-Sea to Moncao | 719.44 mi (1,157.82 km) |
