| Duchcov to Commerce City (Colorado) | 5,168.11 mi (8,317.27 km) |
| Duchcov to Compton (California) | 5,906.95 mi (9,506.31 km) |
| Duchcov to Comstock Park (Michigan) | 4,363.88 mi (7,022.98 km) |
| Duchcov to Concord (California) | 5,753.75 mi (9,259.76 km) |
| Duchcov to Concord (Missouri) | 4,759.79 mi (7,660.14 km) |
| Duchcov to Concord (New Hampshire) | 3,831.13 mi (6,165.60 km) |
| Duchcov to Concord (North Carolina) | 4,554.52 mi (7,329.78 km) |
| Duchcov to Conneaut (Ohio) | 4,232.66 mi (6,811.81 km) |
| Duchcov to Connersville (Indiana) | 4,512.51 mi (7,262.18 km) |
| Duchcov to Conroe (Texas) | 5,381.89 mi (8,661.32 km) |
| Duchcov to Converse (Texas) | 5,529.11 mi (8,898.25 km) |
| Duchcov to Conway (Arkansas) | 5,016.22 mi (8,072.83 km) |
| Duchcov to Conway (Florida) | 4,931.72 mi (7,936.83 km) |
| Duchcov to Conway (South Carolina) | 4,569.04 mi (7,353.16 km) |
| Duchcov to Conyers (Georgia) | 4,772.37 mi (7,680.39 km) |
