| Concordia Sagittaria to Marco de Canavezes | 1,095.83 mi (1,763.57 km) |
| Concordia Sagittaria to Marinha Grande | 1,176.08 mi (1,892.72 km) |
| Concordia Sagittaria to Massama | 1,225.45 mi (1,972.17 km) |
| Concordia Sagittaria to Matosinhos | 1,122.02 mi (1,805.71 km) |
| Concordia Sagittaria to Mealhada | 1,133.44 mi (1,824.09 km) |
| Concordia Sagittaria to Melgaco | 1,076.95 mi (1,733.19 km) |
| Concordia Sagittaria to Melres | 1,110.99 mi (1,787.97 km) |
| Concordia Sagittaria to Mira | 1,145.31 mi (1,843.20 km) |
| Concordia Sagittaria to Miranda do Corvo | 1,136.72 mi (1,829.37 km) |
| Concordia Sagittaria to Mirandela | 1,041.44 mi (1,676.04 km) |
| Concordia Sagittaria to Mogadouro | 1,023.57 mi (1,647.28 km) |
| Concordia Sagittaria to Moimenta da Beira | 1,076.15 mi (1,731.90 km) |
| Concordia Sagittaria to Moita | 1,215.69 mi (1,956.46 km) |
| Concordia Sagittaria to Moncao | 1,088.24 mi (1,751.35 km) |
| Concordia Sagittaria to Montalegre | 1,061.58 mi (1,708.45 km) |
