| Monticello to Mangualde | 4,147.90 mi (6,675.39 km) |
| Monticello to Marco de Canavezes | 4,108.06 mi (6,611.28 km) |
| Monticello to Marinha Grande | 4,132.34 mi (6,650.36 km) |
| Monticello to Massama | 4,157.92 mi (6,691.52 km) |
| Monticello to Matosinhos | 4,084.73 mi (6,573.74 km) |
| Monticello to Mealhada | 4,127.48 mi (6,642.53 km) |
| Monticello to Melgaco | 4,065.94 mi (6,543.49 km) |
| Monticello to Melres | 4,102.13 mi (6,601.74 km) |
| Monticello to Mira | 4,113.35 mi (6,619.80 km) |
| Monticello to Miranda do Corvo | 4,143.92 mi (6,669.00 km) |
| Monticello to Mirandela | 4,136.76 mi (6,657.47 km) |
| Monticello to Mogadouro | 4,162.44 mi (6,698.80 km) |
| Monticello to Moimenta da Beira | 4,138.96 mi (6,661.01 km) |
| Monticello to Moita | 4,174.96 mi (6,718.94 km) |
| Monticello to Moncao | 4,058.69 mi (6,531.83 km) |
