| Oakley to Olympia Heights (Florida) | 2,546.80 mi (4,098.67 km) |
| Oakley to Omaha (Nebraska) | 1,377.97 mi (2,217.63 km) |
| Oakley to On Top of the World Designated Place (Florida) | 2,332.11 mi (3,753.17 km) |
| Oakley to Onalaska (Wisconsin) | 1,632.38 mi (2,627.06 km) |
| Oakley to Oneida (New York) | 2,412.01 mi (3,881.75 km) |
| Oakley to Oneonta (New York) | 2,448.05 mi (3,939.76 km) |
| Oakley to Ontario (California) | 356.05 mi (573.01 km) |
| Oakley to Ontario (Oregon) | 483.84 mi (778.66 km) |
| Oakley to Opa-locka (Florida) | 2,545.31 mi (4,096.29 km) |
| Oakley to Opelika (Alabama) | 2,066.76 mi (3,326.13 km) |
| Oakley to Opelousas (Louisiana) | 1,759.50 mi (2,831.64 km) |
| Oakley to Orange (California) | 361.54 mi (581.85 km) |
| Oakley to Orange (Texas) | 1,681.34 mi (2,705.86 km) |
| Oakley to Orange City (Florida) | 2,391.55 mi (3,848.83 km) |
| Oakley to Orangeburg (South Carolina) | 2,292.22 mi (3,688.97 km) |
