| Loudoun Valley Estates to Mangualde | 3,602.60 mi (5,797.83 km) |
| Loudoun Valley Estates to Marco de Canavezes | 3,568.67 mi (5,743.21 km) |
| Loudoun Valley Estates to Marinha Grande | 3,568.13 mi (5,742.35 km) |
| Loudoun Valley Estates to Massama | 3,578.06 mi (5,758.33 km) |
| Loudoun Valley Estates to Matosinhos | 3,542.11 mi (5,700.48 km) |
| Loudoun Valley Estates to Mealhada | 3,574.98 mi (5,753.37 km) |
| Loudoun Valley Estates to Melgaco | 3,539.36 mi (5,696.05 km) |
| Loudoun Valley Estates to Melres | 3,559.60 mi (5,728.63 km) |
| Loudoun Valley Estates to Mira | 3,559.88 mi (5,729.07 km) |
| Loudoun Valley Estates to Miranda do Corvo | 3,588.16 mi (5,774.59 km) |
| Loudoun Valley Estates to Mirandela | 3,607.40 mi (5,805.55 km) |
| Loudoun Valley Estates to Mogadouro | 3,633.68 mi (5,847.85 km) |
| Loudoun Valley Estates to Moimenta da Beira | 3,599.84 mi (5,793.39 km) |
| Loudoun Valley Estates to Moita | 3,595.42 mi (5,786.26 km) |
| Loudoun Valley Estates to Moncao | 3,530.25 mi (5,681.38 km) |
