| Buckhurst Hill to Mangualde | 847.39 mi (1,363.74 km) |
| Buckhurst Hill to Marco de Canavezes | 819.35 mi (1,318.61 km) |
| Buckhurst Hill to Marinha Grande | 926.49 mi (1,491.05 km) |
| Buckhurst Hill to Massama | 996.57 mi (1,603.83 km) |
| Buckhurst Hill to Matosinhos | 831.96 mi (1,338.91 km) |
| Buckhurst Hill to Mealhada | 876.06 mi (1,409.89 km) |
| Buckhurst Hill to Melgaco | 764.40 mi (1,230.19 km) |
| Buckhurst Hill to Melres | 832.24 mi (1,339.37 km) |
| Buckhurst Hill to Mira | 879.25 mi (1,415.01 km) |
| Buckhurst Hill to Miranda do Corvo | 891.38 mi (1,434.54 km) |
| Buckhurst Hill to Mirandela | 779.53 mi (1,254.53 km) |
| Buckhurst Hill to Mogadouro | 779.92 mi (1,255.16 km) |
| Buckhurst Hill to Moimenta da Beira | 820.52 mi (1,320.50 km) |
| Buckhurst Hill to Moita | 997.11 mi (1,604.69 km) |
| Buckhurst Hill to Moncao | 772.19 mi (1,242.73 km) |
