| Ortenberg to Olympia Heights (Florida) | 4,843.79 mi (7,795.33 km) |
| Ortenberg to Omaha (Nebraska) | 4,663.14 mi (7,504.61 km) |
| Ortenberg to On Top of the World Designated Place (Florida) | 4,754.14 mi (7,651.05 km) |
| Ortenberg to Onalaska (Wisconsin) | 4,362.17 mi (7,020.23 km) |
| Ortenberg to Oneida (New York) | 3,823.10 mi (6,152.68 km) |
| Ortenberg to Oneonta (New York) | 3,827.10 mi (6,159.12 km) |
| Ortenberg to Ontario (California) | 5,760.74 mi (9,271.01 km) |
| Ortenberg to Ontario (Oregon) | 5,155.40 mi (8,296.82 km) |
| Ortenberg to Opa-locka (Florida) | 4,831.35 mi (7,775.30 km) |
| Ortenberg to Opelika (Alabama) | 4,700.73 mi (7,565.09 km) |
| Ortenberg to Opelousas (Louisiana) | 5,074.49 mi (8,166.61 km) |
| Ortenberg to Orange (California) | 5,781.04 mi (9,303.69 km) |
| Ortenberg to Orange (Texas) | 5,160.65 mi (8,305.27 km) |
| Ortenberg to Orange City (Florida) | 4,721.40 mi (7,598.36 km) |
| Ortenberg to Orangeburg (South Carolina) | 4,477.84 mi (7,206.39 km) |
