| Aiken to Mangualde | 3,986.87 mi (6,416.26 km) |
| Aiken to Marco de Canavezes | 3,955.01 mi (6,364.98 km) |
| Aiken to Marinha Grande | 3,947.00 mi (6,352.09 km) |
| Aiken to Massama | 3,951.77 mi (6,359.76 km) |
| Aiken to Matosinhos | 3,927.80 mi (6,321.18 km) |
| Aiken to Mealhada | 3,957.39 mi (6,368.80 km) |
| Aiken to Melgaco | 3,929.64 mi (6,324.14 km) |
| Aiken to Melres | 3,945.13 mi (6,349.08 km) |
| Aiken to Mira | 3,942.15 mi (6,344.28 km) |
| Aiken to Miranda do Corvo | 3,969.43 mi (6,388.19 km) |
| Aiken to Mirandela | 3,996.22 mi (6,431.29 km) |
| Aiken to Mogadouro | 4,022.40 mi (6,473.43 km) |
| Aiken to Moimenta da Beira | 3,985.95 mi (6,414.77 km) |
| Aiken to Moita | 3,969.04 mi (6,387.55 km) |
| Aiken to Moncao | 3,920.09 mi (6,308.78 km) |
