| Siilinjarvi to Karlovo | 1,416.35 mi (2,279.39 km) |
| Siilinjarvi to Karnobat | 1,412.65 mi (2,273.44 km) |
| Siilinjarvi to Kavarna | 1,357.38 mi (2,184.49 km) |
| Siilinjarvi to Kazanlak | 1,416.46 mi (2,279.58 km) |
| Siilinjarvi to Knezha | 1,360.04 mi (2,188.77 km) |
| Siilinjarvi to Kostinbrod | 1,411.08 mi (2,270.92 km) |
| Siilinjarvi to Kozloduy | 1,342.09 mi (2,159.89 km) |
| Siilinjarvi to Kyustendil | 1,450.59 mi (2,334.49 km) |
| Siilinjarvi to Levski | 1,365.46 mi (2,197.50 km) |
| Siilinjarvi to Lom | 1,341.64 mi (2,159.15 km) |
| Siilinjarvi to Lovech | 1,382.79 mi (2,225.39 km) |
| Siilinjarvi to Lukovit | 1,380.35 mi (2,221.46 km) |
| Siilinjarvi to Lyaskovets | 1,382.34 mi (2,224.66 km) |
| Siilinjarvi to Mezdra | 1,385.82 mi (2,230.26 km) |
| Siilinjarvi to Momchilgrad | 1,491.19 mi (2,399.83 km) |
