| Chaudfontaine to Marco de Canavezes | 925.25 mi (1,489.04 km) |
| Chaudfontaine to Marinha Grande | 1,027.80 mi (1,654.08 km) |
| Chaudfontaine to Massama | 1,093.30 mi (1,759.50 km) |
| Chaudfontaine to Matosinhos | 944.10 mi (1,519.39 km) |
| Chaudfontaine to Mealhada | 977.69 mi (1,573.43 km) |
| Chaudfontaine to Melgaco | 881.53 mi (1,418.69 km) |
| Chaudfontaine to Melres | 939.85 mi (1,512.54 km) |
| Chaudfontaine to Mira | 984.50 mi (1,584.40 km) |
| Chaudfontaine to Miranda do Corvo | 989.10 mi (1,591.80 km) |
| Chaudfontaine to Mirandela | 876.82 mi (1,411.11 km) |
| Chaudfontaine to Mogadouro | 869.73 mi (1,399.69 km) |
| Chaudfontaine to Moimenta da Beira | 918.05 mi (1,477.46 km) |
| Chaudfontaine to Moita | 1,089.90 mi (1,754.02 km) |
| Chaudfontaine to Moncao | 891.26 mi (1,434.35 km) |
| Chaudfontaine to Montalegre | 879.82 mi (1,415.93 km) |
