| Leiden to Caguas (Puerto Rico) | 4,409.07 mi (7,095.72 km) |
| Leiden to Cahokia (Illinois) | 4,356.08 mi (7,010.43 km) |
| Leiden to Calabasas (California) | 5,560.37 mi (8,948.55 km) |
| Leiden to Caldwell (Idaho) | 4,947.96 mi (7,962.97 km) |
| Leiden to Caledonia (Wisconsin) | 4,062.93 mi (6,538.65 km) |
| Leiden to Calera (Alabama) | 4,500.35 mi (7,242.61 km) |
| Leiden to Calexico (California) | 5,548.43 mi (8,929.34 km) |
| Leiden to Calhoun (Georgia) | 4,360.62 mi (7,017.75 km) |
| Leiden to California (Maryland) | 3,842.09 mi (6,183.24 km) |
| Leiden to California City (California) | 5,476.60 mi (8,813.73 km) |
| Leiden to Callaway (Florida) | 4,606.39 mi (7,413.28 km) |
| Leiden to Calumet City (Illinois) | 4,108.34 mi (6,611.74 km) |
| Leiden to Calverton (Maryland) | 3,824.50 mi (6,154.94 km) |
| Leiden to Camano (Washington) | 4,833.75 mi (7,779.16 km) |
| Leiden to Camarillo (California) | 5,566.11 mi (8,957.79 km) |
