| Rustington to Mangualde | 786.38 mi (1,265.56 km) |
| Rustington to Marco de Canavezes | 758.71 mi (1,221.02 km) |
| Rustington to Marinha Grande | 865.79 mi (1,393.36 km) |
| Rustington to Massama | 935.76 mi (1,505.96 km) |
| Rustington to Matosinhos | 771.67 mi (1,241.88 km) |
| Rustington to Mealhada | 815.31 mi (1,312.12 km) |
| Rustington to Melgaco | 704.27 mi (1,133.42 km) |
| Rustington to Melres | 771.71 mi (1,241.95 km) |
| Rustington to Mira | 818.67 mi (1,317.52 km) |
| Rustington to Miranda do Corvo | 830.49 mi (1,336.55 km) |
| Rustington to Mirandela | 718.49 mi (1,156.29 km) |
| Rustington to Mogadouro | 718.68 mi (1,156.60 km) |
| Rustington to Moimenta da Beira | 759.54 mi (1,222.36 km) |
| Rustington to Moita | 936.15 mi (1,506.59 km) |
| Rustington to Moncao | 712.21 mi (1,146.19 km) |
