| Chalco to Mangualde | 4,393.83 mi (7,071.18 km) |
| Chalco to Marco de Canavezes | 4,355.13 mi (7,008.91 km) |
| Chalco to Marinha Grande | 4,373.76 mi (7,038.88 km) |
| Chalco to Massama | 4,395.63 mi (7,074.08 km) |
| Chalco to Matosinhos | 4,330.97 mi (6,970.02 km) |
| Chalco to Mealhada | 4,371.64 mi (7,035.48 km) |
| Chalco to Melgaco | 4,315.66 mi (6,945.38 km) |
| Chalco to Melres | 4,348.47 mi (6,998.18 km) |
| Chalco to Mira | 4,357.22 mi (7,012.27 km) |
| Chalco to Miranda do Corvo | 4,387.40 mi (7,060.85 km) |
| Chalco to Mirandela | 4,386.21 mi (7,058.93 km) |
| Chalco to Mogadouro | 4,412.15 mi (7,100.67 km) |
| Chalco to Moimenta da Beira | 4,386.25 mi (7,058.98 km) |
| Chalco to Moita | 4,412.82 mi (7,101.75 km) |
| Chalco to Moncao | 4,307.96 mi (6,933.00 km) |
