| Great Linford to Mangualde | 858.56 mi (1,381.72 km) |
| Great Linford to Marco de Canavezes | 828.69 mi (1,333.65 km) |
| Great Linford to Marinha Grande | 935.94 mi (1,506.24 km) |
| Great Linford to Massama | 1,006.47 mi (1,619.76 km) |
| Great Linford to Matosinhos | 839.90 mi (1,351.68 km) |
| Great Linford to Mealhada | 885.82 mi (1,425.58 km) |
| Great Linford to Melgaco | 771.89 mi (1,242.24 km) |
| Great Linford to Melres | 841.12 mi (1,353.66 km) |
| Great Linford to Mira | 888.23 mi (1,429.47 km) |
| Great Linford to Miranda do Corvo | 901.80 mi (1,451.31 km) |
| Great Linford to Mirandela | 790.99 mi (1,272.97 km) |
| Great Linford to Mogadouro | 792.86 mi (1,275.98 km) |
| Great Linford to Moimenta da Beira | 831.56 mi (1,338.26 km) |
| Great Linford to Moita | 1,007.79 mi (1,621.88 km) |
| Great Linford to Moncao | 779.19 mi (1,253.99 km) |
