| Madison Heights to Mangualde | 3,762.28 mi (6,054.81 km) |
| Madison Heights to Marco de Canavezes | 3,725.33 mi (5,995.35 km) |
| Madison Heights to Marinha Grande | 3,736.51 mi (6,013.33 km) |
| Madison Heights to Massama | 3,753.93 mi (6,041.37 km) |
| Madison Heights to Matosinhos | 3,700.11 mi (5,954.76 km) |
| Madison Heights to Mealhada | 3,737.86 mi (6,015.51 km) |
| Madison Heights to Melgaco | 3,689.81 mi (5,938.18 km) |
| Madison Heights to Melres | 3,717.68 mi (5,983.03 km) |
| Madison Heights to Mira | 3,723.12 mi (5,991.78 km) |
| Madison Heights to Miranda do Corvo | 3,752.67 mi (6,039.35 km) |
| Madison Heights to Mirandela | 3,759.64 mi (6,050.55 km) |
| Madison Heights to Mogadouro | 3,785.82 mi (6,092.69 km) |
| Madison Heights to Moimenta da Beira | 3,756.60 mi (6,045.66 km) |
| Madison Heights to Moita | 3,771.25 mi (6,069.23 km) |
| Madison Heights to Moncao | 3,681.50 mi (5,924.81 km) |
