| Leiden to Cicero (Illinois) | 4,104.79 mi (6,606.03 km) |
| Leiden to Cimarron Hills (Colorado) | 4,851.46 mi (7,807.68 km) |
| Leiden to Cincinnati (Ohio) | 4,114.26 mi (6,621.26 km) |
| Leiden to Cinco Ranch (Texas) | 5,024.80 mi (8,086.64 km) |
| Leiden to Circleville (Ohio) | 4,031.71 mi (6,488.40 km) |
| Leiden to Citrus (California) | 5,538.30 mi (8,913.03 km) |
| Leiden to Citrus Heights (California) | 5,365.48 mi (8,634.90 km) |
| Leiden to Citrus Park (Florida) | 4,591.58 mi (7,389.43 km) |
| Leiden to Claiborne (Louisiana) | 4,741.28 mi (7,630.35 km) |
| Leiden to Claremont (California) | 5,532.48 mi (8,903.67 km) |
| Leiden to Claremont (New Hampshire) | 3,448.32 mi (5,549.53 km) |
| Leiden to Claremore (Oklahoma) | 4,670.97 mi (7,517.20 km) |
| Leiden to Clarksburg (Maryland) | 3,829.24 mi (6,162.57 km) |
| Leiden to Clarksburg (West Virginia) | 3,946.17 mi (6,350.74 km) |
| Leiden to Clarksdale (Mississippi) | 4,593.33 mi (7,392.24 km) |
