| Billere to Karlovo | 1,270.15 mi (2,044.11 km) |
| Billere to Karnobat | 1,378.86 mi (2,219.07 km) |
| Billere to Kavarna | 1,435.89 mi (2,310.84 km) |
| Billere to Kazanlak | 1,300.10 mi (2,092.31 km) |
| Billere to Knezha | 1,224.55 mi (1,970.73 km) |
| Billere to Kostinbrod | 1,188.59 mi (1,912.85 km) |
| Billere to Kozloduy | 1,204.70 mi (1,938.77 km) |
| Billere to Kyustendil | 1,168.61 mi (1,880.69 km) |
| Billere to Levski | 1,278.01 mi (2,056.76 km) |
| Billere to Lom | 1,179.80 mi (1,898.71 km) |
| Billere to Lovech | 1,259.81 mi (2,027.47 km) |
| Billere to Lukovit | 1,231.70 mi (1,982.23 km) |
| Billere to Lyaskovets | 1,309.93 mi (2,108.13 km) |
| Billere to Mezdra | 1,208.99 mi (1,945.69 km) |
| Billere to Momchilgrad | 1,317.09 mi (2,119.66 km) |
