| Idanha-a-Nova to Montemor-o-Novo | 102.10 mi (164.32 km) |
| Idanha-a-Nova to Montemor-o-Velho | 78.62 mi (126.53 km) |
| Idanha-a-Nova to Montijo | 123.30 mi (198.43 km) |
| Idanha-a-Nova to Mortagua | 63.73 mi (102.56 km) |
| Idanha-a-Nova to Moura | 123.77 mi (199.19 km) |
| Idanha-a-Nova to Murtosa | 92.85 mi (149.43 km) |
| Idanha-a-Nova to Nazare | 99.81 mi (160.63 km) |
| Idanha-a-Nova to Nelas | 52.70 mi (84.81 km) |
| Idanha-a-Nova to Obidos | 109.43 mi (176.11 km) |
| Idanha-a-Nova to Odemira | 177.99 mi (286.45 km) |
| Idanha-a-Nova to Odivelas | 129.88 mi (209.02 km) |
| Idanha-a-Nova to Oeiras | 140.25 mi (225.70 km) |
| Idanha-a-Nova to Olhao | 202.41 mi (325.75 km) |
| Idanha-a-Nova to Oliveira de Azemeis | 91.33 mi (146.98 km) |
| Idanha-a-Nova to Oliveira de Frades | 74.57 mi (120.00 km) |
