| Karlovy Vary to Oswego (Illinois) | 4,510.03 mi (7,258.19 km) |
| Karlovy Vary to Oswego (New York) | 3,989.75 mi (6,420.88 km) |
| Karlovy Vary to Otsego (Minnesota) | 4,510.34 mi (7,258.69 km) |
| Karlovy Vary to Ottawa (Illinois) | 4,543.87 mi (7,312.66 km) |
| Karlovy Vary to Ottawa (Kansas) | 4,912.58 mi (7,906.03 km) |
| Karlovy Vary to Ottumwa (Iowa) | 4,687.37 mi (7,543.59 km) |
| Karlovy Vary to Overland (Missouri) | 4,734.24 mi (7,619.03 km) |
| Karlovy Vary to Overland Park (Kansas) | 4,877.37 mi (7,849.37 km) |
| Karlovy Vary to Overlea (Maryland) | 4,178.60 mi (6,724.80 km) |
| Karlovy Vary to Oviedo (Florida) | 4,891.76 mi (7,872.53 km) |
| Karlovy Vary to Owasso (Oklahoma) | 5,055.46 mi (8,135.98 km) |
| Karlovy Vary to Owatonna (Minnesota) | 4,557.41 mi (7,334.45 km) |
| Karlovy Vary to Owensboro (Kentucky) | 4,662.82 mi (7,504.08 km) |
| Karlovy Vary to Owings Mills (Maryland) | 4,187.12 mi (6,738.52 km) |
| Karlovy Vary to Owosso (Michigan) | 4,296.01 mi (6,913.75 km) |
