| Williamsburg to Mangualde | 3,615.38 mi (5,818.40 km) |
| Williamsburg to Marco de Canavezes | 3,582.65 mi (5,765.72 km) |
| Williamsburg to Marinha Grande | 3,577.80 mi (5,757.91 km) |
| Williamsburg to Massama | 3,584.88 mi (5,769.31 km) |
| Williamsburg to Matosinhos | 3,555.69 mi (5,722.33 km) |
| Williamsburg to Mealhada | 3,586.66 mi (5,772.18 km) |
| Williamsburg to Melgaco | 3,555.69 mi (5,722.34 km) |
| Williamsburg to Melres | 3,573.10 mi (5,750.34 km) |
| Williamsburg to Mira | 3,571.48 mi (5,747.74 km) |
| Williamsburg to Miranda do Corvo | 3,599.20 mi (5,792.36 km) |
| Williamsburg to Mirandela | 3,622.88 mi (5,830.47 km) |
| Williamsburg to Mogadouro | 3,649.12 mi (5,872.69 km) |
| Williamsburg to Moimenta da Beira | 3,613.70 mi (5,815.69 km) |
| Williamsburg to Moita | 3,602.20 mi (5,797.19 km) |
| Williamsburg to Moncao | 3,546.31 mi (5,707.24 km) |
