| Red Bluff to Mangualde | 5,504.07 mi (8,857.95 km) |
| Red Bluff to Marco de Canavezes | 5,461.45 mi (8,789.35 km) |
| Red Bluff to Marinha Grande | 5,501.68 mi (8,854.09 km) |
| Red Bluff to Massama | 5,536.70 mi (8,910.46 km) |
| Red Bluff to Matosinhos | 5,441.07 mi (8,756.56 km) |
| Red Bluff to Mealhada | 5,489.17 mi (8,833.96 km) |
| Red Bluff to Melgaco | 5,411.86 mi (8,709.54 km) |
| Red Bluff to Melres | 5,457.86 mi (8,783.57 km) |
| Red Bluff to Mira | 5,476.13 mi (8,812.98 km) |
| Red Bluff to Miranda do Corvo | 5,507.32 mi (8,863.17 km) |
| Red Bluff to Mirandela | 5,482.24 mi (8,822.81 km) |
| Red Bluff to Mogadouro | 5,506.64 mi (8,862.08 km) |
| Red Bluff to Moimenta da Beira | 5,491.17 mi (8,837.18 km) |
| Red Bluff to Moita | 5,553.08 mi (8,936.82 km) |
| Red Bluff to Moncao | 5,406.15 mi (8,700.36 km) |
