| Simpsonville to Mangualde | 3,971.61 mi (6,391.69 km) |
| Simpsonville to Marco de Canavezes | 3,938.94 mi (6,339.12 km) |
| Simpsonville to Marinha Grande | 3,933.73 mi (6,330.73 km) |
| Simpsonville to Massama | 3,940.36 mi (6,341.40 km) |
| Simpsonville to Matosinhos | 3,911.97 mi (6,295.70 km) |
| Simpsonville to Mealhada | 3,942.81 mi (6,345.34 km) |
| Simpsonville to Melgaco | 3,912.02 mi (6,295.78 km) |
| Simpsonville to Melres | 3,929.37 mi (6,323.71 km) |
| Simpsonville to Mira | 3,927.62 mi (6,320.89 km) |
| Simpsonville to Miranda do Corvo | 3,955.29 mi (6,365.42 km) |
| Simpsonville to Mirandela | 3,979.21 mi (6,403.92 km) |
| Simpsonville to Mogadouro | 4,005.44 mi (6,446.14 km) |
| Simpsonville to Moimenta da Beira | 3,969.99 mi (6,389.08 km) |
| Simpsonville to Moita | 3,957.67 mi (6,369.25 km) |
| Simpsonville to Moncao | 3,902.64 mi (6,280.69 km) |
