| Karlovy Vary to Orangevale (California) | 5,690.29 mi (9,157.63 km) |
| Karlovy Vary to Orchards (Washington) | 5,292.33 mi (8,517.18 km) |
| Karlovy Vary to Orcutt (California) | 5,903.30 mi (9,500.45 km) |
| Karlovy Vary to Oregon (Ohio) | 4,333.50 mi (6,974.09 km) |
| Karlovy Vary to Oregon (Wisconsin) | 4,485.08 mi (7,218.04 km) |
| Karlovy Vary to Oregon City (Oregon) | 5,315.00 mi (8,553.66 km) |
| Karlovy Vary to Orem (Utah) | 5,339.19 mi (8,592.60 km) |
| Karlovy Vary to Orinda (California) | 5,763.70 mi (9,275.77 km) |
| Karlovy Vary to Orland Park (Illinois) | 4,496.83 mi (7,236.95 km) |
| Karlovy Vary to Orlando (Florida) | 4,907.11 mi (7,897.23 km) |
| Karlovy Vary to Ormond Beach (Florida) | 4,855.67 mi (7,814.45 km) |
| Karlovy Vary to Oro Valley (Arizona) | 5,776.85 mi (9,296.94 km) |
| Karlovy Vary to Oroville (California) | 5,649.05 mi (9,091.27 km) |
| Karlovy Vary to Oshkosh (Wisconsin) | 4,401.73 mi (7,083.90 km) |
| Karlovy Vary to Oskaloosa (Iowa) | 4,681.00 mi (7,533.34 km) |
