| Bucharest to Oak Harbor (Washington) | 5,755.79 mi (9,263.05 km) |
| Bucharest to Oak Hills (Oregon) | 5,936.25 mi (9,553.47 km) |
| Bucharest to Oak Lawn (Illinois) | 5,217.10 mi (8,396.11 km) |
| Bucharest to Oak Park (California) | 6,574.23 mi (10,580.21 km) |
| Bucharest to Oak Park (Illinois) | 5,209.55 mi (8,383.96 km) |
| Bucharest to Oak Park (Michigan) | 5,017.76 mi (8,075.31 km) |
| Bucharest to Oak Ridge (Florida) | 5,643.23 mi (9,081.90 km) |
| Bucharest to Oak Ridge (New Jersey) | 4,758.44 mi (7,657.97 km) |
| Bucharest to Oak Ridge (Tennessee) | 5,382.07 mi (8,661.60 km) |
| Bucharest to Oakdale (California) | 6,394.52 mi (10,290.99 km) |
| Bucharest to Oakdale (Minnesota) | 5,219.96 mi (8,400.71 km) |
| Bucharest to Oakland (California) | 6,421.32 mi (10,334.12 km) |
| Bucharest to Oakland (New Jersey) | 4,748.43 mi (7,641.85 km) |
| Bucharest to Oakland Park (Florida) | 5,704.50 mi (9,180.51 km) |
| Bucharest to Oakleaf Plantation (Florida) | 5,575.50 mi (8,972.89 km) |
