| Duchcov to Cloverly (Maryland) | 4,231.79 mi (6,810.41 km) |
| Duchcov to Clovis (California) | 5,766.25 mi (9,279.88 km) |
| Duchcov to Clovis (New Mexico) | 5,421.79 mi (8,725.53 km) |
| Duchcov to Clute (Texas) | 5,449.71 mi (8,770.46 km) |
| Duchcov to Coachella (California) | 5,861.62 mi (9,433.37 km) |
| Duchcov to Coalinga (California) | 5,824.72 mi (9,373.98 km) |
| Duchcov to Coamo (Puerto Rico) | 4,830.67 mi (7,774.22 km) |
| Duchcov to Coatesville (Pennsylvania) | 4,144.43 mi (6,669.82 km) |
| Duchcov to Cockeysville (Maryland) | 4,199.65 mi (6,758.68 km) |
| Duchcov to Cocoa (Florida) | 4,914.73 mi (7,909.50 km) |
| Duchcov to Cocoa Beach (Florida) | 4,911.57 mi (7,904.40 km) |
| Duchcov to Coconut Creek (Florida) | 4,999.12 mi (8,045.31 km) |
| Duchcov to Coeur d'Alene (Idaho) | 5,037.10 mi (8,106.44 km) |
| Duchcov to Cohoes (New York) | 3,934.32 mi (6,331.68 km) |
| Duchcov to Cold Springs (Nevada) | 5,598.32 mi (9,009.63 km) |
