| Donostia to Kocaeli | 1,636.23 mi (2,633.26 km) |
| Donostia to Konak | 1,549.72 mi (2,494.03 km) |
| Donostia to Konakli | 1,839.27 mi (2,960.02 km) |
| Donostia to Konya | 1,833.32 mi (2,950.44 km) |
| Donostia to Koprukoy | 2,249.68 mi (3,620.51 km) |
| Donostia to Korfez | 1,626.59 mi (2,617.74 km) |
| Donostia to Korkut | 2,276.49 mi (3,663.66 km) |
| Donostia to Kose | 2,133.92 mi (3,434.22 km) |
| Donostia to Kovancilar | 2,181.30 mi (3,510.47 km) |
| Donostia to Koyulhisar | 2,041.20 mi (3,285.00 km) |
| Donostia to Kozan | 2,011.38 mi (3,237.00 km) |
| Donostia to Kozlu | 1,714.82 mi (2,759.74 km) |
| Donostia to Kozluk | 2,276.42 mi (3,663.54 km) |
| Donostia to Kucuk Dalyan | 2,065.33 mi (3,323.82 km) |
| Donostia to Kucukcekmece | 1,575.60 mi (2,535.68 km) |
