| South Charleston to Mangualde | 3,825.38 mi (6,156.36 km) |
| South Charleston to Marco de Canavezes | 3,790.87 mi (6,100.81 km) |
| South Charleston to Marinha Grande | 3,792.38 mi (6,103.25 km) |
| South Charleston to Massama | 3,803.51 mi (6,121.16 km) |
| South Charleston to Matosinhos | 3,764.54 mi (6,058.43 km) |
| South Charleston to Mealhada | 3,798.30 mi (6,112.78 km) |
| South Charleston to Melgaco | 3,760.36 mi (6,051.71 km) |
| South Charleston to Melres | 3,782.05 mi (6,086.63 km) |
| South Charleston to Mira | 3,783.25 mi (6,088.55 km) |
| South Charleston to Miranda do Corvo | 3,811.78 mi (6,134.46 km) |
| South Charleston to Mirandela | 3,828.81 mi (6,161.87 km) |
| South Charleston to Mogadouro | 3,855.09 mi (6,204.18 km) |
| South Charleston to Moimenta da Beira | 3,822.09 mi (6,151.06 km) |
| South Charleston to Moita | 3,820.87 mi (6,149.10 km) |
| South Charleston to Moncao | 3,751.39 mi (6,037.28 km) |
