| Duncan to Kocaali | 6,284.08 mi (10,113.25 km) |
| Duncan to Kocaeli | 6,267.99 mi (10,087.36 km) |
| Duncan to Konak | 6,290.85 mi (10,124.15 km) |
| Duncan to Konakli | 6,557.35 mi (10,553.03 km) |
| Duncan to Konya | 6,509.49 mi (10,476.02 km) |
| Duncan to Koprukoy | 6,685.86 mi (10,759.86 km) |
| Duncan to Korfez | 6,260.63 mi (10,075.50 km) |
| Duncan to Korkut | 6,755.46 mi (10,871.86 km) |
| Duncan to Kose | 6,608.12 mi (10,634.74 km) |
| Duncan to Kovancilar | 6,699.89 mi (10,782.43 km) |
| Duncan to Koyulhisar | 6,548.21 mi (10,538.33 km) |
| Duncan to Kozan | 6,643.60 mi (10,691.85 km) |
| Duncan to Kozlu | 6,293.77 mi (10,128.85 km) |
| Duncan to Kozluk | 6,778.60 mi (10,909.11 km) |
| Duncan to Kucuk Dalyan | 6,724.04 mi (10,821.30 km) |
