| Poznan to Olympia Heights (Florida) | 5,118.20 mi (8,236.94 km) |
| Poznan to Omaha (Nebraska) | 4,830.25 mi (7,773.54 km) |
| Poznan to On Top of the World Designated Place (Florida) | 5,012.07 mi (8,066.15 km) |
| Poznan to Onalaska (Wisconsin) | 4,535.44 mi (7,299.08 km) |
| Poznan to Oneida (New York) | 4,048.93 mi (6,516.12 km) |
| Poznan to Oneonta (New York) | 4,057.46 mi (6,529.85 km) |
| Poznan to Ontario (California) | 5,865.69 mi (9,439.91 km) |
| Poznan to Ontario (Oregon) | 5,232.44 mi (8,420.79 km) |
| Poznan to Opa-locka (Florida) | 5,105.49 mi (8,216.49 km) |
| Poznan to Opelika (Alabama) | 4,936.75 mi (7,944.93 km) |
| Poznan to Opelousas (Louisiana) | 5,294.57 mi (8,520.79 km) |
| Poznan to Orange (California) | 5,885.71 mi (9,472.14 km) |
| Poznan to Orange (Texas) | 5,375.98 mi (8,651.81 km) |
| Poznan to Orange City (Florida) | 4,983.04 mi (8,019.43 km) |
| Poznan to Orangeburg (South Carolina) | 4,725.62 mi (7,605.15 km) |
