| Wiener Neustadt to Olympia Heights (Florida) | 5,209.07 mi (8,383.19 km) |
| Wiener Neustadt to Omaha (Nebraska) | 5,024.06 mi (8,085.45 km) |
| Wiener Neustadt to On Top of the World Designated Place (Florida) | 5,122.33 mi (8,243.59 km) |
| Wiener Neustadt to Onalaska (Wisconsin) | 4,724.31 mi (7,603.04 km) |
| Wiener Neustadt to Oneida (New York) | 4,192.43 mi (6,747.06 km) |
| Wiener Neustadt to Oneonta (New York) | 4,196.60 mi (6,753.78 km) |
| Wiener Neustadt to Ontario (California) | 6,102.59 mi (9,821.17 km) |
| Wiener Neustadt to Ontario (Oregon) | 5,484.59 mi (8,826.59 km) |
| Wiener Neustadt to Opa-locka (Florida) | 5,196.69 mi (8,363.27 km) |
| Wiener Neustadt to Opelika (Alabama) | 5,070.32 mi (8,159.89 km) |
| Wiener Neustadt to Opelousas (Louisiana) | 5,443.73 mi (8,760.83 km) |
| Wiener Neustadt to Orange (California) | 6,122.81 mi (9,853.70 km) |
| Wiener Neustadt to Orange (Texas) | 5,529.59 mi (8,899.02 km) |
| Wiener Neustadt to Orange City (Florida) | 5,089.11 mi (8,190.12 km) |
| Wiener Neustadt to Orangeburg (South Carolina) | 4,847.04 mi (7,800.56 km) |
