| Bucharest to Odessa (Texas) | 6,247.32 mi (10,054.10 km) |
| Bucharest to Ogden (Utah) | 5,973.49 mi (9,613.41 km) |
| Bucharest to Oildale (California) | 6,502.00 mi (10,463.96 km) |
| Bucharest to Ojus (Florida) | 5,715.91 mi (9,198.86 km) |
| Bucharest to Okemos (Michigan) | 5,049.93 mi (8,127.07 km) |
| Bucharest to Oklahoma City (Oklahoma) | 5,884.58 mi (9,470.32 km) |
| Bucharest to Okmulgee (Oklahoma) | 5,825.52 mi (9,375.26 km) |
| Bucharest to Olathe (Kansas) | 5,607.10 mi (9,023.75 km) |
| Bucharest to Old Jamestown (Missouri) | 5,454.24 mi (8,777.74 km) |
| Bucharest to Oldsmar (Florida) | 5,716.70 mi (9,200.14 km) |
| Bucharest to Olean (New York) | 4,861.18 mi (7,823.32 km) |
| Bucharest to Olive Branch (Mississippi) | 5,642.10 mi (9,080.08 km) |
| Bucharest to Olivehurst (California) | 6,325.36 mi (10,179.69 km) |
| Bucharest to Olney (Maryland) | 4,946.74 mi (7,961.01 km) |
| Bucharest to Olympia (Washington) | 5,840.82 mi (9,399.90 km) |
