| San Giuliano Terme to Marco de Canavezes | 961.94 mi (1,548.09 km) |
| San Giuliano Terme to Marinha Grande | 1,033.68 mi (1,663.54 km) |
| San Giuliano Terme to Massama | 1,077.76 mi (1,734.48 km) |
| San Giuliano Terme to Matosinhos | 989.32 mi (1,592.15 km) |
| San Giuliano Terme to Mealhada | 994.23 mi (1,600.06 km) |
| San Giuliano Terme to Melgaco | 951.02 mi (1,530.53 km) |
| San Giuliano Terme to Melres | 976.74 mi (1,571.91 km) |
| San Giuliano Terme to Mira | 1,007.10 mi (1,620.78 km) |
| San Giuliano Terme to Miranda do Corvo | 995.26 mi (1,601.72 km) |
| San Giuliano Terme to Mirandela | 907.86 mi (1,461.06 km) |
| San Giuliano Terme to Mogadouro | 887.66 mi (1,428.55 km) |
| San Giuliano Terme to Moimenta da Beira | 939.46 mi (1,511.92 km) |
| San Giuliano Terme to Moita | 1,066.70 mi (1,716.68 km) |
| San Giuliano Terme to Moncao | 962.36 mi (1,548.76 km) |
| San Giuliano Terme to Montalegre | 932.16 mi (1,500.17 km) |
