| Donostia to Jicin | 951.46 mi (1,531.23 km) |
| Donostia to Jihlava | 934.19 mi (1,503.43 km) |
| Donostia to Jindrichuv Hradec | 903.24 mi (1,453.63 km) |
| Donostia to Jirkov | 878.41 mi (1,413.66 km) |
| Donostia to Kadan | 867.51 mi (1,396.12 km) |
| Donostia to Karlovy Vary | 847.24 mi (1,363.51 km) |
| Donostia to Karvina | 1,069.41 mi (1,721.06 km) |
| Donostia to Kladno | 893.02 mi (1,437.18 km) |
| Donostia to Klasterec nad Ohri | 863.92 mi (1,390.34 km) |
| Donostia to Klatovy | 838.44 mi (1,349.34 km) |
| Donostia to Kolin | 933.96 mi (1,503.06 km) |
| Donostia to Koprivnice | 1,047.28 mi (1,685.43 km) |
| Donostia to Kralupy nad Vltavou | 904.19 mi (1,455.15 km) |
| Donostia to Kraluv Dvur | 884.47 mi (1,423.42 km) |
| Donostia to Krnov | 1,038.85 mi (1,671.87 km) |
