| Prospect Heights to Karditsa | 5,297.35 mi (8,525.27 km) |
| Prospect Heights to Kastoria | 5,217.44 mi (8,396.66 km) |
| Prospect Heights to Katerini | 5,276.14 mi (8,491.13 km) |
| Prospect Heights to Keratsini | 5,430.58 mi (8,739.67 km) |
| Prospect Heights to Kerkyra | 5,208.11 mi (8,381.65 km) |
| Prospect Heights to Kiato | 5,395.07 mi (8,682.53 km) |
| Prospect Heights to Kifisia | 5,432.51 mi (8,742.78 km) |
| Prospect Heights to Kilkis | 5,255.28 mi (8,457.55 km) |
| Prospect Heights to Komotini | 5,343.45 mi (8,599.46 km) |
| Prospect Heights to Korinthos | 5,405.43 mi (8,699.20 km) |
| Prospect Heights to Koropi | 5,443.69 mi (8,760.77 km) |
| Prospect Heights to Korydallos | 5,431.04 mi (8,740.41 km) |
| Prospect Heights to Kos | 5,623.57 mi (9,050.27 km) |
| Prospect Heights to Kozani | 5,247.42 mi (8,444.91 km) |
| Prospect Heights to Lagos | 5,330.83 mi (8,579.14 km) |
