| Leiden to Carson (California) | 5,565.71 mi (8,957.14 km) |
| Leiden to Carson City (Nevada) | 5,295.79 mi (8,522.75 km) |
| Leiden to Carteret (New Jersey) | 3,646.54 mi (5,868.54 km) |
| Leiden to Cartersville (Georgia) | 4,371.61 mi (7,035.43 km) |
| Leiden to Carthage (Missouri) | 4,580.60 mi (7,371.77 km) |
| Leiden to Cary (Illinois) | 4,104.83 mi (6,606.08 km) |
| Leiden to Cary (North Carolina) | 4,054.77 mi (6,525.53 km) |
| Leiden to Casa de Oro-Mount Helix (California) | 5,589.62 mi (8,995.63 km) |
| Leiden to Casa Grande (Arizona) | 5,416.31 mi (8,716.71 km) |
| Leiden to Casas Adobes (Arizona) | 5,423.92 mi (8,728.95 km) |
| Leiden to Cascades (Virginia) | 3,842.37 mi (6,183.69 km) |
| Leiden to Casper (Wyoming) | 4,687.31 mi (7,543.50 km) |
| Leiden to Casselberry (Florida) | 4,510.76 mi (7,259.37 km) |
| Leiden to Castaic (California) | 5,538.96 mi (8,914.09 km) |
| Leiden to Castle Pines (Colorado) | 4,824.31 mi (7,763.97 km) |
