| Prospect Heights to Kidricevo | 4,742.65 mi (7,632.55 km) |
| Prospect Heights to Kobarid | 4,666.88 mi (7,510.61 km) |
| Prospect Heights to Kobilje | 4,752.38 mi (7,648.22 km) |
| Prospect Heights to Kocevje | 4,741.00 mi (7,629.91 km) |
| Prospect Heights to Komen | 4,691.79 mi (7,550.71 km) |
| Prospect Heights to Komenda | 4,704.56 mi (7,571.25 km) |
| Prospect Heights to Koper | 4,702.55 mi (7,568.02 km) |
| Prospect Heights to Kostanjevica na Krki | 4,753.29 mi (7,649.67 km) |
| Prospect Heights to Kostel | 4,748.74 mi (7,642.36 km) |
| Prospect Heights to Kozje | 4,748.32 mi (7,641.68 km) |
| Prospect Heights to Kranj | 4,697.00 mi (7,559.09 km) |
| Prospect Heights to Kranjska Gora | 4,664.52 mi (7,506.82 km) |
| Prospect Heights to Krizevci | 4,748.33 mi (7,641.69 km) |
| Prospect Heights to Krsko | 4,750.93 mi (7,645.88 km) |
| Prospect Heights to Kuzma | 4,734.41 mi (7,619.29 km) |
