| Montecatini Terme to Marco de Canavezes | 978.96 mi (1,575.48 km) |
| Montecatini Terme to Marinha Grande | 1,051.20 mi (1,691.75 km) |
| Montecatini Terme to Massama | 1,095.56 mi (1,763.13 km) |
| Montecatini Terme to Matosinhos | 1,006.27 mi (1,619.44 km) |
| Montecatini Terme to Mealhada | 1,011.57 mi (1,627.96 km) |
| Montecatini Terme to Melgaco | 967.53 mi (1,557.10 km) |
| Montecatini Terme to Melres | 993.79 mi (1,599.34 km) |
| Montecatini Terme to Mira | 1,024.39 mi (1,648.60 km) |
| Montecatini Terme to Miranda do Corvo | 1,012.72 mi (1,629.82 km) |
| Montecatini Terme to Mirandela | 924.83 mi (1,488.37 km) |
| Montecatini Terme to Mogadouro | 904.77 mi (1,456.08 km) |
| Montecatini Terme to Moimenta da Beira | 956.64 mi (1,539.56 km) |
| Montecatini Terme to Moita | 1,084.56 mi (1,745.43 km) |
| Montecatini Terme to Moncao | 978.87 mi (1,575.34 km) |
| Montecatini Terme to Montalegre | 948.89 mi (1,527.09 km) |
