| Chicago Heights to Islahiye | 5,971.03 mi (9,609.44 km) |
| Chicago Heights to Isparta | 5,717.39 mi (9,201.24 km) |
| Chicago Heights to Istanbul | 5,493.81 mi (8,841.44 km) |
| Chicago Heights to Izmir | 5,558.22 mi (8,945.09 km) |
| Chicago Heights to Kadinhani | 5,752.16 mi (9,257.20 km) |
| Chicago Heights to Kadirli | 5,934.08 mi (9,549.98 km) |
| Chicago Heights to Kagithane | 5,491.27 mi (8,837.34 km) |
| Chicago Heights to Kahramanmaras | 5,950.90 mi (9,577.05 km) |
| Chicago Heights to Kahta | 5,996.58 mi (9,650.57 km) |
| Chicago Heights to Kaman | 5,746.27 mi (9,247.73 km) |
| Chicago Heights to Kangal | 5,876.18 mi (9,456.80 km) |
| Chicago Heights to Kapakli | 5,442.52 mi (8,758.89 km) |
| Chicago Heights to Karaagac | 5,978.58 mi (9,621.60 km) |
| Chicago Heights to Karaagac | 5,443.59 mi (8,760.61 km) |
| Chicago Heights to Karabuk | 5,611.96 mi (9,031.58 km) |
