| Prospect Heights to Kothen | 4,379.39 mi (7,047.95 km) |
| Prospect Heights to Kranenburg | 4,166.87 mi (6,705.92 km) |
| Prospect Heights to Krefeld | 4,203.92 mi (6,765.55 km) |
| Prospect Heights to Kressbronn am Bodensee | 4,460.74 mi (7,178.87 km) |
| Prospect Heights to Kreuzau | 4,222.73 mi (6,795.83 km) |
| Prospect Heights to Kreuztal | 4,268.68 mi (6,869.77 km) |
| Prospect Heights to Kriftel | 4,320.67 mi (6,953.45 km) |
| Prospect Heights to Kronach | 4,418.71 mi (7,111.23 km) |
| Prospect Heights to Kronberg | 4,318.04 mi (6,949.21 km) |
| Prospect Heights to Kronshagen | 4,216.41 mi (6,785.65 km) |
| Prospect Heights to Krumbach | 4,463.35 mi (7,183.06 km) |
| Prospect Heights to Kulmbach | 4,428.16 mi (7,126.43 km) |
| Prospect Heights to Kummersbruck | 4,472.06 mi (7,197.09 km) |
| Prospect Heights to Kunzell | 4,348.28 mi (6,997.88 km) |
| Prospect Heights to Kunzelsau | 4,396.74 mi (7,075.86 km) |
