| Prospect Heights to Islahiye | 5,950.14 mi (9,575.82 km) |
| Prospect Heights to Isparta | 5,698.71 mi (9,171.18 km) |
| Prospect Heights to Istanbul | 5,474.26 mi (8,809.97 km) |
| Prospect Heights to Izmir | 5,540.62 mi (8,916.77 km) |
| Prospect Heights to Kadinhani | 5,732.58 mi (9,225.70 km) |
| Prospect Heights to Kadirli | 5,913.27 mi (9,516.49 km) |
| Prospect Heights to Kagithane | 5,471.68 mi (8,805.82 km) |
| Prospect Heights to Kahramanmaras | 5,929.65 mi (9,542.85 km) |
| Prospect Heights to Kahta | 5,974.55 mi (9,615.11 km) |
| Prospect Heights to Kaman | 5,725.59 mi (9,214.44 km) |
| Prospect Heights to Kangal | 5,854.07 mi (9,421.22 km) |
| Prospect Heights to Kapakli | 5,423.19 mi (8,727.79 km) |
| Prospect Heights to Karaagac | 5,958.09 mi (9,588.62 km) |
| Prospect Heights to Karaagac | 5,424.29 mi (8,729.55 km) |
| Prospect Heights to Karabuk | 5,590.91 mi (8,997.69 km) |
