| Idil to Nasaud | 1,122.68 mi (1,806.78 km) |
| Idil to Navodari | 843.67 mi (1,357.76 km) |
| Idil to Negresti-Oas | 1,182.84 mi (1,903.60 km) |
| Idil to Nehoiu | 977.23 mi (1,572.70 km) |
| Idil to Ocna Mures | 1,114.76 mi (1,794.03 km) |
| Idil to Odobesti | 960.02 mi (1,545.01 km) |
| Idil to Odorheiu Secuiesc | 1,052.03 mi (1,693.07 km) |
| Idil to Oltenita | 922.88 mi (1,485.24 km) |
| Idil to Onesti | 990.35 mi (1,593.82 km) |
| Idil to Oradea | 1,217.96 mi (1,960.12 km) |
| Idil to Orastie | 1,126.61 mi (1,813.11 km) |
| Idil to Oravita | 1,173.27 mi (1,888.20 km) |
| Idil to Orsova | 1,133.14 mi (1,823.61 km) |
| Idil to Otelu Rosu | 1,154.92 mi (1,858.66 km) |
| Idil to Otopeni | 961.92 mi (1,548.06 km) |
