| Sliven to Kokkola | 1,467.09 mi (2,361.06 km) |
| Sliven to Kontiolahti | 1,394.91 mi (2,244.90 km) |
| Sliven to Korsholm | 1,423.91 mi (2,291.56 km) |
| Sliven to Kotka | 1,228.98 mi (1,977.85 km) |
| Sliven to Kouvola | 1,256.54 mi (2,022.21 km) |
| Sliven to Kuhmo | 1,486.83 mi (2,392.82 km) |
| Sliven to Kuopio | 1,397.38 mi (2,248.86 km) |
| Sliven to Kurikka | 1,386.48 mi (2,231.33 km) |
| Sliven to Kuusamo | 1,612.43 mi (2,594.96 km) |
| Sliven to Kuusankoski | 1,259.28 mi (2,026.62 km) |
| Sliven to Lahti | 1,264.73 mi (2,035.38 km) |
| Sliven to Laitila | 1,272.23 mi (2,047.46 km) |
| Sliven to Lapinlahti | 1,429.70 mi (2,300.89 km) |
| Sliven to Lappeenranta | 1,272.49 mi (2,047.88 km) |
| Sliven to Lapua | 1,408.08 mi (2,266.09 km) |
