| South El Monte to Mangualde | 5,637.18 mi (9,072.17 km) |
| South El Monte to Marco de Canavezes | 5,596.52 mi (9,006.72 km) |
| South El Monte to Marinha Grande | 5,624.66 mi (9,052.01 km) |
| South El Monte to Massama | 5,652.06 mi (9,096.12 km) |
| South El Monte to Matosinhos | 5,573.91 mi (8,970.34 km) |
| South El Monte to Mealhada | 5,618.07 mi (9,041.42 km) |
| South El Monte to Melgaco | 5,552.20 mi (8,935.40 km) |
| South El Monte to Melres | 5,591.19 mi (8,998.15 km) |
| South El Monte to Mira | 5,604.18 mi (9,019.05 km) |
| South El Monte to Miranda do Corvo | 5,634.96 mi (9,068.58 km) |
| South El Monte to Mirandela | 5,623.10 mi (9,049.50 km) |
| South El Monte to Mogadouro | 5,648.48 mi (9,090.35 km) |
| South El Monte to Moimenta da Beira | 5,627.18 mi (9,056.07 km) |
| South El Monte to Moita | 5,669.02 mi (9,123.40 km) |
| South El Monte to Moncao | 5,545.38 mi (8,924.42 km) |
