| West Chicago to Mangualde | 4,015.27 mi (6,461.96 km) |
| West Chicago to Marco de Canavezes | 3,977.71 mi (6,401.50 km) |
| West Chicago to Marinha Grande | 3,991.43 mi (6,423.58 km) |
| West Chicago to Massama | 4,010.35 mi (6,454.03 km) |
| West Chicago to Matosinhos | 3,952.83 mi (6,361.47 km) |
| West Chicago to Mealhada | 3,991.61 mi (6,423.87 km) |
| West Chicago to Melgaco | 3,940.79 mi (6,342.09 km) |
| West Chicago to Melres | 3,970.39 mi (6,389.72 km) |
| West Chicago to Mira | 3,976.97 mi (6,400.31 km) |
| West Chicago to Miranda do Corvo | 4,006.75 mi (6,448.24 km) |
| West Chicago to Mirandela | 4,010.92 mi (6,454.95 km) |
| West Chicago to Mogadouro | 4,037.03 mi (6,496.98 km) |
| West Chicago to Moimenta da Beira | 4,008.94 mi (6,451.76 km) |
| West Chicago to Moita | 4,027.63 mi (6,481.85 km) |
| West Chicago to Moncao | 3,932.69 mi (6,329.06 km) |
