| Perleberg to Olympia Heights (Florida) | 4,903.36 mi (7,891.20 km) |
| Perleberg to Omaha (Nebraska) | 4,640.14 mi (7,467.59 km) |
| Perleberg to On Top of the World Designated Place (Florida) | 4,799.51 mi (7,724.07 km) |
| Perleberg to Onalaska (Wisconsin) | 4,343.14 mi (6,989.61 km) |
| Perleberg to Oneida (New York) | 3,842.13 mi (6,183.31 km) |
| Perleberg to Oneonta (New York) | 3,849.68 mi (6,195.46 km) |
| Perleberg to Ontario (California) | 5,698.71 mi (9,171.19 km) |
| Perleberg to Ontario (Oregon) | 5,076.15 mi (8,169.28 km) |
| Perleberg to Opa-locka (Florida) | 4,890.68 mi (7,870.79 km) |
| Perleberg to Opelika (Alabama) | 4,728.24 mi (7,609.37 km) |
| Perleberg to Opelousas (Louisiana) | 5,089.86 mi (8,191.33 km) |
| Perleberg to Orange (California) | 5,718.87 mi (9,203.63 km) |
| Perleberg to Orange (Texas) | 5,172.48 mi (8,324.30 km) |
| Perleberg to Orange City (Florida) | 4,769.89 mi (7,676.40 km) |
| Perleberg to Orangeburg (South Carolina) | 4,514.71 mi (7,265.72 km) |
