| Wachtberg to Olympia Heights (Florida) | 4,757.42 mi (7,656.32 km) |
| Wachtberg to Omaha (Nebraska) | 4,584.86 mi (7,378.61 km) |
| Wachtberg to On Top of the World Designated Place (Florida) | 4,668.32 mi (7,512.93 km) |
| Wachtberg to Onalaska (Wisconsin) | 4,283.33 mi (6,893.36 km) |
| Wachtberg to Oneida (New York) | 3,739.44 mi (6,018.04 km) |
| Wachtberg to Oneonta (New York) | 3,743.09 mi (6,023.92 km) |
| Wachtberg to Ontario (California) | 5,689.78 mi (9,156.82 km) |
| Wachtberg to Ontario (Oregon) | 5,089.02 mi (8,189.98 km) |
| Wachtberg to Opa-locka (Florida) | 4,744.98 mi (7,636.30 km) |
| Wachtberg to Opelika (Alabama) | 4,616.11 mi (7,428.91 km) |
| Wachtberg to Opelousas (Louisiana) | 4,990.93 mi (8,032.13 km) |
| Wachtberg to Orange (California) | 5,710.11 mi (9,189.54 km) |
| Wachtberg to Orange (Texas) | 5,077.44 mi (8,171.36 km) |
| Wachtberg to Orange City (Florida) | 4,635.43 mi (7,460.00 km) |
| Wachtberg to Orangeburg (South Carolina) | 4,392.55 mi (7,069.13 km) |
