| Santander to Kidricevo | 977.46 mi (1,573.07 km) |
| Santander to Kobarid | 870.96 mi (1,401.67 km) |
| Santander to Kobilje | 1,007.44 mi (1,621.32 km) |
| Santander to Kocevje | 929.03 mi (1,495.13 km) |
| Santander to Komen | 876.39 mi (1,410.41 km) |
| Santander to Komenda | 916.37 mi (1,474.76 km) |
| Santander to Koper | 874.33 mi (1,407.10 km) |
| Santander to Kostanjevica na Krki | 956.96 mi (1,540.07 km) |
| Santander to Kostel | 931.09 mi (1,498.45 km) |
| Santander to Kozje | 964.32 mi (1,551.92 km) |
| Santander to Kranj | 908.34 mi (1,461.84 km) |
| Santander to Kranjska Gora | 882.84 mi (1,420.79 km) |
| Santander to Krizevci | 994.61 mi (1,600.66 km) |
| Santander to Krsko | 960.16 mi (1,545.23 km) |
| Santander to Kuzma | 993.80 mi (1,599.37 km) |
