| Oldbury to Olympia Heights (Florida) | 4,346.81 mi (6,995.52 km) |
| Oldbury to Omaha (Nebraska) | 4,186.39 mi (6,737.35 km) |
| Oldbury to On Top of the World Designated Place (Florida) | 4,255.32 mi (6,848.28 km) |
| Oldbury to Onalaska (Wisconsin) | 3,883.39 mi (6,249.72 km) |
| Oldbury to Oneida (New York) | 3,327.45 mi (5,355.02 km) |
| Oldbury to Oneonta (New York) | 3,330.56 mi (5,360.02 km) |
| Oldbury to Ontario (California) | 5,314.90 mi (8,553.50 km) |
| Oldbury to Ontario (Oregon) | 4,731.98 mi (7,615.39 km) |
| Oldbury to Opa-locka (Florida) | 4,334.31 mi (6,975.40 km) |
| Oldbury to Opelika (Alabama) | 4,202.85 mi (6,763.84 km) |
| Oldbury to Opelousas (Louisiana) | 4,579.00 mi (7,369.19 km) |
| Oldbury to Orange (California) | 5,335.30 mi (8,586.33 km) |
| Oldbury to Orange (Texas) | 4,666.12 mi (7,509.39 km) |
| Oldbury to Orange City (Florida) | 4,222.78 mi (6,795.91 km) |
| Oldbury to Orangeburg (South Carolina) | 3,979.06 mi (6,403.67 km) |
