| Roanoke Rapids to Mangualde | 3,687.56 mi (5,934.55 km) |
| Roanoke Rapids to Marco de Canavezes | 3,655.09 mi (5,882.29 km) |
| Roanoke Rapids to Marinha Grande | 3,649.29 mi (5,872.96 km) |
| Roanoke Rapids to Massama | 3,655.70 mi (5,883.28 km) |
| Roanoke Rapids to Matosinhos | 3,628.05 mi (5,838.78 km) |
| Roanoke Rapids to Mealhada | 3,658.60 mi (5,887.95 km) |
| Roanoke Rapids to Melgaco | 3,628.62 mi (5,839.70 km) |
| Roanoke Rapids to Melres | 3,645.43 mi (5,866.76 km) |
| Roanoke Rapids to Mira | 3,643.40 mi (5,863.49 km) |
| Roanoke Rapids to Miranda do Corvo | 3,671.00 mi (5,907.90 km) |
| Roanoke Rapids to Mirandela | 3,695.62 mi (5,947.53 km) |
| Roanoke Rapids to Mogadouro | 3,721.84 mi (5,989.73 km) |
| Roanoke Rapids to Moimenta da Beira | 3,686.11 mi (5,932.21 km) |
| Roanoke Rapids to Moita | 3,673.01 mi (5,911.13 km) |
| Roanoke Rapids to Moncao | 3,619.19 mi (5,824.52 km) |
