| Prospect Heights to Kavak | 5,710.19 mi (9,189.66 km) |
| Prospect Heights to Kayapinar | 6,016.20 mi (9,682.13 km) |
| Prospect Heights to Kayseri | 5,819.25 mi (9,365.18 km) |
| Prospect Heights to Kemalpasa | 5,550.41 mi (8,932.52 km) |
| Prospect Heights to Kemer | 5,759.12 mi (9,268.41 km) |
| Prospect Heights to Keskin | 5,705.03 mi (9,181.36 km) |
| Prospect Heights to Kilimli | 5,549.21 mi (8,930.59 km) |
| Prospect Heights to Kilis | 5,983.28 mi (9,629.16 km) |
| Prospect Heights to Kinik | 5,515.25 mi (8,875.94 km) |
| Prospect Heights to Kirikkale | 5,692.69 mi (9,161.49 km) |
| Prospect Heights to Kirkagac | 5,525.45 mi (8,892.35 km) |
| Prospect Heights to Kirklareli | 5,376.73 mi (8,653.02 km) |
| Prospect Heights to Kirsehir | 5,751.74 mi (9,256.53 km) |
| Prospect Heights to Kizilpinar | 5,426.56 mi (8,733.21 km) |
| Prospect Heights to Kiziltepe | 6,070.73 mi (9,769.90 km) |
