| Leopoldsburg to Olympia Heights (Florida) | 4,669.70 mi (7,515.15 km) |
| Leopoldsburg to Omaha (Nebraska) | 4,498.77 mi (7,240.07 km) |
| Leopoldsburg to On Top of the World Designated Place (Florida) | 4,579.95 mi (7,370.72 km) |
| Leopoldsburg to Onalaska (Wisconsin) | 4,196.95 mi (6,754.34 km) |
| Leopoldsburg to Oneida (New York) | 3,650.97 mi (5,875.67 km) |
| Leopoldsburg to Oneonta (New York) | 3,654.55 mi (5,881.43 km) |
| Leopoldsburg to Ontario (California) | 5,608.41 mi (9,025.86 km) |
| Leopoldsburg to Ontario (Oregon) | 5,011.09 mi (8,064.57 km) |
| Leopoldsburg to Opa-locka (Florida) | 4,657.24 mi (7,495.11 km) |
| Leopoldsburg to Opelika (Alabama) | 4,527.50 mi (7,286.31 km) |
| Leopoldsburg to Opelousas (Louisiana) | 4,902.48 mi (7,889.78 km) |
| Leopoldsburg to Orange (California) | 5,628.76 mi (9,058.61 km) |
| Leopoldsburg to Orange (Texas) | 4,989.08 mi (8,029.15 km) |
| Leopoldsburg to Orange City (Florida) | 4,547.16 mi (7,317.95 km) |
| Leopoldsburg to Orangeburg (South Carolina) | 4,303.99 mi (6,926.60 km) |
