| Sparks to Karlovo | 6,337.80 mi (10,199.70 km) |
| Sparks to Karnobat | 6,386.62 mi (10,278.28 km) |
| Sparks to Kavarna | 6,364.71 mi (10,243.02 km) |
| Sparks to Kazanlak | 6,352.85 mi (10,223.93 km) |
| Sparks to Knezha | 6,268.51 mi (10,088.19 km) |
| Sparks to Kostinbrod | 6,290.34 mi (10,123.32 km) |
| Sparks to Kozloduy | 6,243.10 mi (10,047.30 km) |
| Sparks to Kyustendil | 6,310.22 mi (10,155.32 km) |
| Sparks to Levski | 6,300.42 mi (10,139.55 km) |
| Sparks to Lom | 6,229.09 mi (10,024.75 km) |
| Sparks to Lovech | 6,305.42 mi (10,147.60 km) |
| Sparks to Lukovit | 6,288.87 mi (10,120.96 km) |
| Sparks to Lyaskovets | 6,329.90 mi (10,186.99 km) |
| Sparks to Mezdra | 6,281.20 mi (10,108.62 km) |
| Sparks to Momchilgrad | 6,420.41 mi (10,332.65 km) |
