| Skegness to Mangualde | 945.74 mi (1,522.02 km) |
| Skegness to Marco de Canavezes | 916.14 mi (1,474.39 km) |
| Skegness to Marinha Grande | 1,023.39 mi (1,646.99 km) |
| Skegness to Massama | 1,093.88 mi (1,760.43 km) |
| Skegness to Matosinhos | 927.47 mi (1,492.62 km) |
| Skegness to Mealhada | 973.22 mi (1,566.25 km) |
| Skegness to Melgaco | 859.49 mi (1,383.21 km) |
| Skegness to Melres | 928.63 mi (1,494.48 km) |
| Skegness to Mira | 975.73 mi (1,570.28 km) |
| Skegness to Miranda do Corvo | 989.11 mi (1,591.82 km) |
| Skegness to Mirandela | 878.09 mi (1,413.15 km) |
| Skegness to Mogadouro | 879.61 mi (1,415.60 km) |
| Skegness to Moimenta da Beira | 918.75 mi (1,478.59 km) |
| Skegness to Moita | 1,095.07 mi (1,762.35 km) |
| Skegness to Moncao | 866.81 mi (1,394.99 km) |
