| Duchcov to Caño Martin Peña (Puerto Rico) | 4,798.73 mi (7,722.80 km) |
| Duchcov to Cañon City (Colorado) | 5,260.08 mi (8,465.28 km) |
| Duchcov to Canóvanas (Puerto Rico) | 4,795.35 mi (7,717.36 km) |
| Duchcov to Canton (Georgia) | 4,761.66 mi (7,663.15 km) |
| Duchcov to Canton (Illinois) | 4,642.62 mi (7,471.58 km) |
| Duchcov to Canton (Mississippi) | 5,057.86 mi (8,139.84 km) |
| Duchcov to Canton (Ohio) | 4,316.29 mi (6,946.39 km) |
| Duchcov to Canyon (Texas) | 5,348.61 mi (8,607.76 km) |
| Duchcov to Canyon Lake (California) | 5,892.93 mi (9,483.75 km) |
| Duchcov to Canyon Lake (Texas) | 5,507.09 mi (8,862.80 km) |
| Duchcov to Cape Coral (Florida) | 5,054.47 mi (8,134.39 km) |
| Duchcov to Cape Girardeau (Missouri) | 4,793.43 mi (7,714.28 km) |
| Duchcov to Carbondale (Illinois) | 4,759.94 mi (7,660.39 km) |
| Duchcov to Carlisle (Pennsylvania) | 4,187.71 mi (6,739.47 km) |
| Duchcov to Carlsbad (California) | 5,927.69 mi (9,539.70 km) |
