| Sittingbourne to Mangualde | 845.37 mi (1,360.50 km) |
| Sittingbourne to Marco de Canavezes | 818.90 mi (1,317.89 km) |
| Sittingbourne to Marinha Grande | 925.75 mi (1,489.86 km) |
| Sittingbourne to Massama | 995.34 mi (1,601.85 km) |
| Sittingbourne to Matosinhos | 832.64 mi (1,340.01 km) |
| Sittingbourne to Mealhada | 875.17 mi (1,408.44 km) |
| Sittingbourne to Melgaco | 765.60 mi (1,232.11 km) |
| Sittingbourne to Melres | 832.15 mi (1,339.22 km) |
| Sittingbourne to Mira | 878.97 mi (1,414.57 km) |
| Sittingbourne to Miranda do Corvo | 889.90 mi (1,432.16 km) |
| Sittingbourne to Mirandela | 777.42 mi (1,251.14 km) |
| Sittingbourne to Mogadouro | 776.58 mi (1,249.79 km) |
| Sittingbourne to Moimenta da Beira | 818.68 mi (1,317.53 km) |
| Sittingbourne to Moita | 995.24 mi (1,601.68 km) |
| Sittingbourne to Moncao | 773.78 mi (1,245.27 km) |
