| Cluj-Napoca to Oak Harbor (Washington) | 5,561.40 mi (8,950.21 km) |
| Cluj-Napoca to Oak Hills (Oregon) | 5,741.00 mi (9,239.25 km) |
| Cluj-Napoca to Oak Lawn (Illinois) | 5,017.32 mi (8,074.60 km) |
| Cluj-Napoca to Oak Park (California) | 6,373.91 mi (10,257.81 km) |
| Cluj-Napoca to Oak Park (Illinois) | 5,009.70 mi (8,062.33 km) |
| Cluj-Napoca to Oak Park (Michigan) | 4,819.21 mi (7,755.77 km) |
| Cluj-Napoca to Oak Ridge (Florida) | 5,455.60 mi (8,779.94 km) |
| Cluj-Napoca to Oak Ridge (New Jersey) | 4,564.79 mi (7,346.33 km) |
| Cluj-Napoca to Oak Ridge (Tennessee) | 5,186.66 mi (8,347.12 km) |
| Cluj-Napoca to Oakdale (California) | 6,195.86 mi (9,971.28 km) |
| Cluj-Napoca to Oakdale (Minnesota) | 5,018.23 mi (8,076.06 km) |
| Cluj-Napoca to Oakland (California) | 6,223.35 mi (10,015.52 km) |
| Cluj-Napoca to Oakland (New Jersey) | 4,554.92 mi (7,330.44 km) |
| Cluj-Napoca to Oakland Park (Florida) | 5,520.21 mi (8,883.91 km) |
| Cluj-Napoca to Oakleaf Plantation (Florida) | 5,386.03 mi (8,667.97 km) |
