| Boone to Mangualde | 3,892.53 mi (6,264.42 km) |
| Boone to Marco de Canavezes | 3,859.19 mi (6,210.77 km) |
| Boone to Marinha Grande | 3,856.37 mi (6,206.23 km) |
| Boone to Massama | 3,864.62 mi (6,219.51 km) |
| Boone to Matosinhos | 3,832.43 mi (6,167.70 km) |
| Boone to Mealhada | 3,864.33 mi (6,219.04 km) |
| Boone to Melgaco | 3,830.99 mi (6,165.39 km) |
| Boone to Melres | 3,849.88 mi (6,195.79 km) |
| Boone to Mira | 3,849.18 mi (6,194.66 km) |
| Boone to Miranda do Corvo | 3,877.17 mi (6,239.70 km) |
| Boone to Mirandela | 3,898.66 mi (6,274.28 km) |
| Boone to Mogadouro | 3,924.92 mi (6,316.55 km) |
| Boone to Moimenta da Beira | 3,890.31 mi (6,260.85 km) |
| Boone to Moita | 3,881.96 mi (6,247.41 km) |
| Boone to Moncao | 3,821.75 mi (6,150.52 km) |
