| Concord to Mangualde | 5,603.44 mi (9,017.87 km) |
| Concord to Marco de Canavezes | 5,561.26 mi (8,949.98 km) |
| Concord to Marinha Grande | 5,598.49 mi (9,009.90 km) |
| Concord to Massama | 5,631.62 mi (9,063.22 km) |
| Concord to Matosinhos | 5,540.29 mi (8,916.24 km) |
| Concord to Mealhada | 5,587.46 mi (8,992.16 km) |
| Concord to Melgaco | 5,512.91 mi (8,872.18 km) |
| Concord to Melres | 5,557.22 mi (8,943.49 km) |
| Concord to Mira | 5,574.19 mi (8,970.79 km) |
| Concord to Miranda do Corvo | 5,605.32 mi (9,020.88 km) |
| Concord to Mirandela | 5,583.52 mi (8,985.80 km) |
| Concord to Mogadouro | 5,608.19 mi (9,025.52 km) |
| Concord to Moimenta da Beira | 5,591.25 mi (8,998.25 km) |
| Concord to Moita | 5,648.17 mi (9,089.85 km) |
| Concord to Moncao | 5,506.93 mi (8,862.54 km) |
