| Boynton Beach to Mangualde | 4,159.37 mi (6,693.85 km) |
| Boynton Beach to Marco de Canavezes | 4,132.10 mi (6,649.98 km) |
| Boynton Beach to Marinha Grande | 4,109.50 mi (6,613.61 km) |
| Boynton Beach to Massama | 4,104.41 mi (6,605.42 km) |
| Boynton Beach to Matosinhos | 4,103.94 mi (6,604.66 km) |
| Boynton Beach to Mealhada | 4,126.61 mi (6,641.14 km) |
| Boynton Beach to Melgaco | 4,115.06 mi (6,622.54 km) |
| Boynton Beach to Melres | 4,120.72 mi (6,631.66 km) |
| Boynton Beach to Mira | 4,111.33 mi (6,616.54 km) |
| Boynton Beach to Miranda do Corvo | 4,136.27 mi (6,656.68 km) |
| Boynton Beach to Mirandela | 4,177.74 mi (6,723.42 km) |
| Boynton Beach to Mogadouro | 4,203.37 mi (6,764.67 km) |
| Boynton Beach to Moimenta da Beira | 4,162.13 mi (6,698.29 km) |
| Boynton Beach to Moita | 4,121.26 mi (6,632.53 km) |
| Boynton Beach to Moncao | 4,104.77 mi (6,605.99 km) |
