| Duchcov to Kaneohe (Hawaii) | 7,434.63 mi (11,964.87 km) |
| Duchcov to Kankakee (Illinois) | 4,538.32 mi (7,303.72 km) |
| Duchcov to Kannapolis (North Carolina) | 4,550.53 mi (7,323.37 km) |
| Duchcov to Kansas City (Kansas) | 4,880.93 mi (7,855.09 km) |
| Duchcov to Kansas City (Missouri) | 4,874.40 mi (7,844.59 km) |
| Duchcov to Kapaa (Hawaii) | 7,396.41 mi (11,903.37 km) |
| Duchcov to Kapolei (Hawaii) | 7,440.91 mi (11,974.98 km) |
| Duchcov to Katy (Texas) | 5,423.95 mi (8,729.01 km) |
| Duchcov to Kaukauna (Wisconsin) | 4,392.98 mi (7,069.82 km) |
| Duchcov to Kaysville (Utah) | 5,308.02 mi (8,542.43 km) |
| Duchcov to Kearney (Missouri) | 4,855.48 mi (7,814.13 km) |
| Duchcov to Kearney (Nebraska) | 4,940.40 mi (7,950.81 km) |
| Duchcov to Kearns (Utah) | 5,331.90 mi (8,580.86 km) |
| Duchcov to Kearny (New Jersey) | 4,042.58 mi (6,505.91 km) |
| Duchcov to Keene (New Hampshire) | 3,872.22 mi (6,231.74 km) |
