| Manassas to Mangualde | 3,608.41 mi (5,807.17 km) |
| Manassas to Marco de Canavezes | 3,574.61 mi (5,752.78 km) |
| Manassas to Marinha Grande | 3,573.57 mi (5,751.10 km) |
| Manassas to Massama | 3,583.15 mi (5,766.53 km) |
| Manassas to Matosinhos | 3,548.01 mi (5,709.97 km) |
| Manassas to Mealhada | 3,580.65 mi (5,762.50 km) |
| Manassas to Melgaco | 3,545.58 mi (5,706.06 km) |
| Manassas to Melres | 3,565.49 mi (5,738.10 km) |
| Manassas to Mira | 3,565.54 mi (5,738.18 km) |
| Manassas to Miranda do Corvo | 3,593.76 mi (5,783.60 km) |
| Manassas to Mirandela | 3,613.53 mi (5,815.41 km) |
| Manassas to Mogadouro | 3,639.80 mi (5,857.70 km) |
| Manassas to Moimenta da Beira | 3,605.77 mi (5,802.93 km) |
| Manassas to Moita | 3,600.51 mi (5,794.46 km) |
| Manassas to Moncao | 3,536.43 mi (5,691.34 km) |
