| Bucharest to Oakley (California) | 6,397.62 mi (10,295.97 km) |
| Bucharest to Oakton (Virginia) | 4,967.92 mi (7,995.10 km) |
| Bucharest to Oakville (Missouri) | 5,476.00 mi (8,812.77 km) |
| Bucharest to Oatfield (Oregon) | 5,940.02 mi (9,559.54 km) |
| Bucharest to Ocala (Florida) | 5,638.34 mi (9,074.03 km) |
| Bucharest to Ocean Acres (New Jersey) | 4,808.71 mi (7,738.87 km) |
| Bucharest to Ocean City (New Jersey) | 4,843.31 mi (7,794.56 km) |
| Bucharest to Ocean Pines (Maryland) | 4,905.99 mi (7,895.43 km) |
| Bucharest to Ocean Pointe (Hawaii) | 7,886.61 mi (12,692.27 km) |
| Bucharest to Ocean Springs (Mississippi) | 5,841.16 mi (9,400.44 km) |
| Bucharest to Oceanside (California) | 6,599.22 mi (10,620.42 km) |
| Bucharest to Oceanside (New York) | 4,742.64 mi (7,632.54 km) |
| Bucharest to Ocoee (Florida) | 5,642.73 mi (9,081.09 km) |
| Bucharest to Oconomowoc (Wisconsin) | 5,171.83 mi (8,323.26 km) |
| Bucharest to Odenton (Maryland) | 4,935.66 mi (7,943.18 km) |
