| Donostia to Karakocan | 2,183.73 mi (3,514.37 km) |
| Donostia to Karakopru | 2,169.04 mi (3,490.74 km) |
| Donostia to Karaman | 1,889.09 mi (3,040.19 km) |
| Donostia to Karapinar | 1,891.08 mi (3,043.39 km) |
| Donostia to Karatas | 2,015.57 mi (3,243.74 km) |
| Donostia to Karatepe | 1,639.28 mi (2,638.17 km) |
| Donostia to Karayilan | 2,053.95 mi (3,305.52 km) |
| Donostia to Kargipinar | 1,964.09 mi (3,160.90 km) |
| Donostia to Karkamis | 2,139.30 mi (3,442.87 km) |
| Donostia to Karliova | 2,223.79 mi (3,578.85 km) |
| Donostia to Kars | 2,295.17 mi (3,693.71 km) |
| Donostia to Kartal | 1,597.32 mi (2,570.64 km) |
| Donostia to Kas | 1,738.06 mi (2,797.14 km) |
| Donostia to Kastamonu | 1,816.84 mi (2,923.92 km) |
| Donostia to Kavak | 1,935.49 mi (3,114.87 km) |
