| Heerlen to Isparta | 1,503.63 mi (2,419.85 km) |
| Heerlen to Istanbul | 1,289.10 mi (2,074.61 km) |
| Heerlen to Izmir | 1,341.67 mi (2,159.20 km) |
| Heerlen to Kadinhani | 1,545.76 mi (2,487.66 km) |
| Heerlen to Kadirli | 1,743.00 mi (2,805.09 km) |
| Heerlen to Kagithane | 1,286.99 mi (2,071.21 km) |
| Heerlen to Kahramanmaras | 1,767.33 mi (2,844.25 km) |
| Heerlen to Kahta | 1,828.40 mi (2,942.53 km) |
| Heerlen to Kaman | 1,555.76 mi (2,503.76 km) |
| Heerlen to Kangal | 1,713.07 mi (2,756.92 km) |
| Heerlen to Kapakli | 1,235.44 mi (1,988.26 km) |
| Heerlen to Karaagac | 1,781.94 mi (2,867.76 km) |
| Heerlen to Karaagac | 1,236.25 mi (1,989.55 km) |
| Heerlen to Karabuk | 1,431.37 mi (2,303.57 km) |
| Heerlen to Karahalli | 1,436.61 mi (2,312.00 km) |
