| Popesti-Leordeni to Olympia Heights (Florida) | 5,739.79 mi (9,237.31 km) |
| Popesti-Leordeni to Omaha (Nebraska) | 5,522.82 mi (8,888.12 km) |
| Popesti-Leordeni to On Top of the World Designated Place (Florida) | 5,652.29 mi (9,096.48 km) |
| Popesti-Leordeni to Onalaska (Wisconsin) | 5,226.25 mi (8,410.83 km) |
| Popesti-Leordeni to Oneida (New York) | 4,715.27 mi (7,588.49 km) |
| Popesti-Leordeni to Oneonta (New York) | 4,720.73 mi (7,597.28 km) |
| Popesti-Leordeni to Ontario (California) | 6,560.37 mi (10,557.89 km) |
| Popesti-Leordeni to Ontario (Oregon) | 5,921.70 mi (9,530.06 km) |
| Popesti-Leordeni to Opa-locka (Florida) | 5,727.42 mi (9,217.39 km) |
| Popesti-Leordeni to Opelika (Alabama) | 5,596.42 mi (9,006.56 km) |
| Popesti-Leordeni to Opelousas (Louisiana) | 5,965.56 mi (9,600.64 km) |
| Popesti-Leordeni to Orange (California) | 6,580.33 mi (10,590.02 km) |
| Popesti-Leordeni to Orange (Texas) | 6,049.90 mi (9,736.37 km) |
| Popesti-Leordeni to Orange City (Florida) | 5,619.41 mi (9,043.56 km) |
| Popesti-Leordeni to Orangeburg (South Carolina) | 5,375.46 mi (8,650.97 km) |
