| Idanha-a-Nova to Navodari | 1,847.08 mi (2,972.58 km) |
| Idanha-a-Nova to Negresti-Oas | 1,609.63 mi (2,590.45 km) |
| Idanha-a-Nova to Nehoiu | 1,732.36 mi (2,787.96 km) |
| Idanha-a-Nova to Ocna Mures | 1,618.14 mi (2,604.14 km) |
| Idanha-a-Nova to Odobesti | 1,769.55 mi (2,847.81 km) |
| Idanha-a-Nova to Odorheiu Secuiesc | 1,686.34 mi (2,713.91 km) |
| Idanha-a-Nova to Oltenita | 1,750.07 mi (2,816.47 km) |
| Idanha-a-Nova to Onesti | 1,756.15 mi (2,826.25 km) |
| Idanha-a-Nova to Oradea | 1,532.17 mi (2,465.79 km) |
| Idanha-a-Nova to Orastie | 1,583.75 mi (2,548.80 km) |
| Idanha-a-Nova to Oravita | 1,506.86 mi (2,425.06 km) |
| Idanha-a-Nova to Orsova | 1,540.61 mi (2,479.37 km) |
| Idanha-a-Nova to Otelu Rosu | 1,541.36 mi (2,480.57 km) |
| Idanha-a-Nova to Otopeni | 1,721.11 mi (2,769.86 km) |
| Idanha-a-Nova to Ovidiu | 1,844.64 mi (2,968.66 km) |
