| Cluj-Napoca to Opwijk | 925.06 mi (1,488.74 km) |
| Cluj-Napoca to Ostend | 982.24 mi (1,580.76 km) |
| Cluj-Napoca to Oud-Heverlee | 902.65 mi (1,452.67 km) |
| Cluj-Napoca to Oud-Turnhout | 896.15 mi (1,442.21 km) |
| Cluj-Napoca to Oudenaarde | 948.66 mi (1,526.73 km) |
| Cluj-Napoca to Oudenburg | 978.29 mi (1,574.40 km) |
| Cluj-Napoca to Oupeye | 859.12 mi (1,382.62 km) |
| Cluj-Napoca to Overijse | 907.74 mi (1,460.86 km) |
| Cluj-Napoca to Overpelt | 876.32 mi (1,410.31 km) |
| Cluj-Napoca to Paal | 883.90 mi (1,422.50 km) |
| Cluj-Napoca to Peer | 873.44 mi (1,405.66 km) |
| Cluj-Napoca to Pepinster | 849.74 mi (1,367.52 km) |
| Cluj-Napoca to Peruwelz | 945.85 mi (1,522.20 km) |
| Cluj-Napoca to Perwez | 893.65 mi (1,438.20 km) |
| Cluj-Napoca to Philippeville | 900.60 mi (1,449.37 km) |
