| Prospect Heights to Kirchlengern | 4,246.21 mi (6,833.61 km) |
| Prospect Heights to Kirchlinteln | 4,242.39 mi (6,827.46 km) |
| Prospect Heights to Kirchseeon | 4,527.13 mi (7,285.71 km) |
| Prospect Heights to Kirchzarten | 4,383.27 mi (7,054.19 km) |
| Prospect Heights to Kirkel | 4,305.34 mi (6,928.78 km) |
| Prospect Heights to Kissing | 4,484.32 mi (7,216.82 km) |
| Prospect Heights to Kisslegg | 4,463.71 mi (7,183.65 km) |
| Prospect Heights to Kitzingen | 4,396.74 mi (7,075.87 km) |
| Prospect Heights to Kleinblittersdorf | 4,302.74 mi (6,924.60 km) |
| Prospect Heights to Kleve | 4,171.69 mi (6,713.69 km) |
| Prospect Heights to Klipphausen | 4,462.83 mi (7,182.24 km) |
| Prospect Heights to Klotze | 4,318.61 mi (6,950.13 km) |
| Prospect Heights to Koblenz | 4,278.08 mi (6,884.91 km) |
| Prospect Heights to Kolbermoor | 4,543.04 mi (7,311.31 km) |
| Prospect Heights to Kolkwitz | 4,460.15 mi (7,177.92 km) |
