| Royal Wootton Bassett to Mangualde | 805.03 mi (1,295.57 km) |
| Royal Wootton Bassett to Marco de Canavezes | 774.01 mi (1,245.65 km) |
| Royal Wootton Bassett to Marinha Grande | 881.18 mi (1,418.12 km) |
| Royal Wootton Bassett to Massama | 951.92 mi (1,531.97 km) |
| Royal Wootton Bassett to Matosinhos | 784.35 mi (1,262.29 km) |
| Royal Wootton Bassett to Mealhada | 831.31 mi (1,337.87 km) |
| Royal Wootton Bassett to Melgaco | 716.19 mi (1,152.60 km) |
| Royal Wootton Bassett to Melres | 786.14 mi (1,265.17 km) |
| Royal Wootton Bassett to Mira | 833.25 mi (1,340.98 km) |
| Royal Wootton Bassett to Miranda do Corvo | 847.70 mi (1,364.25 km) |
| Royal Wootton Bassett to Mirandela | 737.77 mi (1,187.33 km) |
| Royal Wootton Bassett to Mogadouro | 740.70 mi (1,192.04 km) |
| Royal Wootton Bassett to Moimenta da Beira | 777.98 mi (1,252.03 km) |
| Royal Wootton Bassett to Moita | 953.73 mi (1,534.88 km) |
| Royal Wootton Bassett to Moncao | 723.20 mi (1,163.87 km) |
