| Ilioupoli to Navodari | 508.55 mi (818.43 km) |
| Ilioupoli to Negresti-Oas | 686.71 mi (1,105.16 km) |
| Ilioupoli to Nehoiu | 529.28 mi (851.80 km) |
| Ilioupoli to Ocna Mures | 584.33 mi (940.39 km) |
| Ilioupoli to Odobesti | 567.38 mi (913.10 km) |
| Ilioupoli to Odorheiu Secuiesc | 584.44 mi (940.57 km) |
| Ilioupoli to Oltenita | 450.93 mi (725.70 km) |
| Ilioupoli to Onesti | 595.56 mi (958.46 km) |
| Ilioupoli to Oradea | 638.22 mi (1,027.12 km) |
| Ilioupoli to Orastie | 547.72 mi (881.47 km) |
| Ilioupoli to Oravita | 502.49 mi (808.68 km) |
| Ilioupoli to Orsova | 474.49 mi (763.62 km) |
| Ilioupoli to Otelu Rosu | 529.00 mi (851.34 km) |
| Ilioupoli to Otopeni | 472.73 mi (760.79 km) |
| Ilioupoli to Ovidiu | 504.16 mi (811.37 km) |
