| Karlovy Vary to Joliet (Illinois) | 4,511.56 mi (7,260.66 km) |
| Karlovy Vary to Jonesboro (Arkansas) | 4,894.17 mi (7,876.41 km) |
| Karlovy Vary to Joplin (Missouri) | 4,966.56 mi (7,992.91 km) |
| Karlovy Vary to Joppatowne (Maryland) | 4,169.56 mi (6,710.25 km) |
| Karlovy Vary to Juana Díaz (Puerto Rico) | 4,801.52 mi (7,727.29 km) |
| Karlovy Vary to Junction City (Kansas) | 4,944.40 mi (7,957.24 km) |
| Karlovy Vary to Juneau (Alaska) | 4,700.02 mi (7,563.96 km) |
| Karlovy Vary to Jupiter (Florida) | 4,936.07 mi (7,943.84 km) |
| Karlovy Vary to Jupiter Farms (Florida) | 4,940.36 mi (7,950.74 km) |
| Karlovy Vary to Jurupa Valley (California) | 5,875.51 mi (9,455.73 km) |
| Karlovy Vary to Justice (Illinois) | 4,488.78 mi (7,224.00 km) |
| Karlovy Vary to Kahului (Hawaii) | 7,480.97 mi (12,039.46 km) |
| Karlovy Vary to Kailua (Hawaii) | 7,454.92 mi (11,997.54 km) |
| Karlovy Vary to Kalamazoo (Michigan) | 4,382.09 mi (7,052.29 km) |
| Karlovy Vary to Kalispell (Montana) | 4,948.05 mi (7,963.12 km) |
