| Ustka to Olympia Heights (Florida) | 5,060.29 mi (8,143.75 km) |
| Ustka to Omaha (Nebraska) | 4,726.75 mi (7,606.96 km) |
| Ustka to On Top of the World Designated Place (Florida) | 4,945.56 mi (7,959.10 km) |
| Ustka to Onalaska (Wisconsin) | 4,434.55 mi (7,136.72 km) |
| Ustka to Oneida (New York) | 3,969.36 mi (6,388.07 km) |
| Ustka to Oneonta (New York) | 3,979.87 mi (6,404.98 km) |
| Ustka to Ontario (California) | 5,742.79 mi (9,242.12 km) |
| Ustka to Ontario (Oregon) | 5,103.84 mi (8,213.83 km) |
| Ustka to Opa-locka (Florida) | 5,047.46 mi (8,123.10 km) |
| Ustka to Opelika (Alabama) | 4,859.83 mi (7,821.14 km) |
| Ustka to Opelousas (Louisiana) | 5,210.04 mi (8,384.74 km) |
| Ustka to Orange (California) | 5,762.72 mi (9,274.20 km) |
| Ustka to Orange (Texas) | 5,289.33 mi (8,512.36 km) |
| Ustka to Orange City (Florida) | 4,918.49 mi (7,915.55 km) |
| Ustka to Orangeburg (South Carolina) | 4,654.63 mi (7,490.90 km) |
