| Laredo to Mangualde | 295.90 mi (476.20 km) |
| Laredo to Marco de Canavezes | 287.05 mi (461.97 km) |
| Laredo to Marinha Grande | 381.40 mi (613.81 km) |
| Laredo to Massama | 443.44 mi (713.65 km) |
| Laredo to Matosinhos | 311.12 mi (500.69 km) |
| Laredo to Mealhada | 333.12 mi (536.11 km) |
| Laredo to Melgaco | 262.11 mi (421.83 km) |
| Laredo to Melres | 302.35 mi (486.58 km) |
| Laredo to Mira | 342.39 mi (551.03 km) |
| Laredo to Miranda do Corvo | 341.70 mi (549.91 km) |
| Laredo to Mirandela | 233.93 mi (376.47 km) |
| Laredo to Mogadouro | 221.70 mi (356.79 km) |
| Laredo to Moimenta da Beira | 273.06 mi (439.45 km) |
| Laredo to Moita | 438.81 mi (706.20 km) |
| Laredo to Moncao | 273.38 mi (439.97 km) |
