| Littlehampton to Mangualde | 785.58 mi (1,264.26 km) |
| Littlehampton to Marco de Canavezes | 757.84 mi (1,219.63 km) |
| Littlehampton to Marinha Grande | 864.94 mi (1,391.98 km) |
| Littlehampton to Massama | 934.92 mi (1,504.61 km) |
| Littlehampton to Matosinhos | 770.76 mi (1,240.42 km) |
| Littlehampton to Mealhada | 814.47 mi (1,310.76 km) |
| Littlehampton to Melgaco | 703.35 mi (1,131.93 km) |
| Littlehampton to Melres | 770.83 mi (1,240.53 km) |
| Littlehampton to Mira | 817.80 mi (1,316.11 km) |
| Littlehampton to Miranda do Corvo | 829.67 mi (1,335.22 km) |
| Littlehampton to Mirandela | 717.69 mi (1,155.01 km) |
| Littlehampton to Mogadouro | 717.93 mi (1,155.40 km) |
| Littlehampton to Moimenta da Beira | 758.73 mi (1,221.06 km) |
| Littlehampton to Moita | 935.34 mi (1,505.28 km) |
| Littlehampton to Moncao | 711.27 mi (1,144.68 km) |
