| Assemini to Olympia Heights (Florida) | 5,083.13 mi (8,180.51 km) |
| Assemini to Omaha (Nebraska) | 5,150.62 mi (8,289.13 km) |
| Assemini to On Top of the World Designated Place (Florida) | 5,042.05 mi (8,114.40 km) |
| Assemini to Onalaska (Wisconsin) | 4,844.69 mi (7,796.78 km) |
| Assemini to Oneida (New York) | 4,213.70 mi (6,781.30 km) |
| Assemini to Oneonta (New York) | 4,207.39 mi (6,771.14 km) |
| Assemini to Ontario (California) | 6,329.49 mi (10,186.33 km) |
| Assemini to Ontario (Oregon) | 5,769.73 mi (9,285.48 km) |
| Assemini to Opa-locka (Florida) | 5,071.76 mi (8,162.21 km) |
| Assemini to Opelika (Alabama) | 5,045.50 mi (8,119.94 km) |
| Assemini to Opelousas (Louisiana) | 5,447.77 mi (8,767.34 km) |
| Assemini to Orange (California) | 6,349.92 mi (10,219.20 km) |
| Assemini to Orange (Texas) | 5,542.64 mi (8,920.01 km) |
| Assemini to Orange City (Florida) | 5,000.06 mi (8,046.81 km) |
| Assemini to Orangeburg (South Carolina) | 4,799.09 mi (7,723.39 km) |
