| Middlesbrough to Kidricevo | 933.67 mi (1,502.59 km) |
| Middlesbrough to Kobarid | 866.76 mi (1,394.91 km) |
| Middlesbrough to Kobilje | 941.56 mi (1,515.29 km) |
| Middlesbrough to Kocevje | 939.26 mi (1,511.59 km) |
| Middlesbrough to Komen | 894.28 mi (1,439.21 km) |
| Middlesbrough to Komenda | 900.44 mi (1,449.11 km) |
| Middlesbrough to Koper | 907.46 mi (1,460.42 km) |
| Middlesbrough to Kostanjevica na Krki | 947.99 mi (1,525.65 km) |
| Middlesbrough to Kostel | 947.71 mi (1,525.19 km) |
| Middlesbrough to Kozje | 941.39 mi (1,515.03 km) |
| Middlesbrough to Kranj | 893.40 mi (1,437.79 km) |
| Middlesbrough to Kranjska Gora | 861.66 mi (1,386.70 km) |
| Middlesbrough to Krizevci | 938.17 mi (1,509.83 km) |
| Middlesbrough to Krsko | 944.87 mi (1,520.62 km) |
| Middlesbrough to Kuzma | 923.66 mi (1,486.48 km) |
