| Idanha-a-Nova to Marco de Canavezes | 99.87 mi (160.73 km) |
| Idanha-a-Nova to Marinha Grande | 90.93 mi (146.34 km) |
| Idanha-a-Nova to Massama | 135.36 mi (217.84 km) |
| Idanha-a-Nova to Matosinhos | 116.56 mi (187.59 km) |
| Idanha-a-Nova to Mealhada | 71.89 mi (115.70 km) |
| Idanha-a-Nova to Melgaco | 161.27 mi (259.53 km) |
| Idanha-a-Nova to Melres | 100.36 mi (161.51 km) |
| Idanha-a-Nova to Mira | 86.86 mi (139.79 km) |
| Idanha-a-Nova to Miranda do Corvo | 59.58 mi (95.88 km) |
| Idanha-a-Nova to Mirandela | 108.41 mi (174.47 km) |
| Idanha-a-Nova to Mogadouro | 101.56 mi (163.44 km) |
| Idanha-a-Nova to Moimenta da Beira | 76.12 mi (122.50 km) |
| Idanha-a-Nova to Moita | 128.13 mi (206.21 km) |
| Idanha-a-Nova to Moncao | 162.57 mi (261.63 km) |
| Idanha-a-Nova to Montalegre | 134.91 mi (217.12 km) |
