| Leiden to Kenosha (Wisconsin) | 4,073.20 mi (6,555.18 km) |
| Leiden to Kent (Ohio) | 3,898.36 mi (6,273.80 km) |
| Leiden to Kent (Washington) | 4,874.53 mi (7,844.79 km) |
| Leiden to Kentwood (Michigan) | 3,975.27 mi (6,397.59 km) |
| Leiden to Kerman (California) | 5,448.07 mi (8,767.82 km) |
| Leiden to Kernersville (North Carolina) | 4,089.41 mi (6,581.27 km) |
| Leiden to Kerrville (Texas) | 5,135.01 mi (8,263.99 km) |
| Leiden to Kettering (Maryland) | 3,826.06 mi (6,157.45 km) |
| Leiden to Kettering (Ohio) | 4,073.85 mi (6,556.22 km) |
| Leiden to Kewanee (Illinois) | 4,213.48 mi (6,780.94 km) |
| Leiden to Key Biscayne (Florida) | 4,615.82 mi (7,428.45 km) |
| Leiden to Key Largo (Florida) | 4,655.43 mi (7,492.19 km) |
| Leiden to Key West (Florida) | 4,740.89 mi (7,629.73 km) |
| Leiden to Keystone (Florida) | 4,590.10 mi (7,387.05 km) |
| Leiden to Kihei (Hawaii) | 7,268.48 mi (11,697.49 km) |
