| Duffel to Kayapinar | 1,952.58 mi (3,142.37 km) |
| Duffel to Kayseri | 1,721.71 mi (2,770.82 km) |
| Duffel to Kemalpasa | 1,414.16 mi (2,275.88 km) |
| Duffel to Kemer | 1,624.32 mi (2,614.09 km) |
| Duffel to Keskin | 1,602.52 mi (2,579.00 km) |
| Duffel to Kilimli | 1,452.00 mi (2,336.77 km) |
| Duffel to Kilis | 1,879.91 mi (3,025.43 km) |
| Duffel to Kinik | 1,380.09 mi (2,221.04 km) |
| Duffel to Kirikkale | 1,591.07 mi (2,560.58 km) |
| Duffel to Kirkagac | 1,390.87 mi (2,238.38 km) |
| Duffel to Kirklareli | 1,252.77 mi (2,016.14 km) |
| Duffel to Kirsehir | 1,648.24 mi (2,652.59 km) |
| Duffel to Kizilpinar | 1,302.94 mi (2,096.87 km) |
| Duffel to Kiziltepe | 2,002.24 mi (3,222.30 km) |
| Duffel to Kocaali | 1,429.27 mi (2,300.19 km) |
