| Donostia to Kelkheim (Taunus) | 681.37 mi (1,096.56 km) |
| Donostia to Kelsterbach | 680.82 mi (1,095.67 km) |
| Donostia to Kemberg | 895.03 mi (1,440.41 km) |
| Donostia to Kempen | 679.98 mi (1,094.33 km) |
| Donostia to Kempten | 667.73 mi (1,074.60 km) |
| Donostia to Kenzingen | 577.34 mi (929.14 km) |
| Donostia to Kerpen | 661.48 mi (1,064.55 km) |
| Donostia to Ketsch | 651.61 mi (1,048.67 km) |
| Donostia to Kevelaer | 687.40 mi (1,106.26 km) |
| Donostia to Kiel | 936.32 mi (1,506.87 km) |
| Donostia to Kierspe | 700.31 mi (1,127.04 km) |
| Donostia to Kirchhain | 727.44 mi (1,170.70 km) |
| Donostia to Kirchheim bei Munchen | 740.95 mi (1,192.44 km) |
| Donostia to Kirchheim unter Teck | 659.77 mi (1,061.79 km) |
| Donostia to Kirchhundem | 714.28 mi (1,149.53 km) |
