| Castellbisbal to Karlovo | 1,170.08 mi (1,883.06 km) |
| Castellbisbal to Karnobat | 1,280.42 mi (2,060.63 km) |
| Castellbisbal to Kavarna | 1,344.45 mi (2,163.68 km) |
| Castellbisbal to Kazanlak | 1,200.27 mi (1,931.65 km) |
| Castellbisbal to Knezha | 1,131.32 mi (1,820.68 km) |
| Castellbisbal to Kostinbrod | 1,088.83 mi (1,752.31 km) |
| Castellbisbal to Kozloduy | 1,113.84 mi (1,792.56 km) |
| Castellbisbal to Kyustendil | 1,063.76 mi (1,711.96 km) |
| Castellbisbal to Levski | 1,184.16 mi (1,905.73 km) |
| Castellbisbal to Lom | 1,089.17 mi (1,752.85 km) |
| Castellbisbal to Lovech | 1,163.76 mi (1,872.90 km) |
| Castellbisbal to Lukovit | 1,135.89 mi (1,828.04 km) |
| Castellbisbal to Lyaskovets | 1,214.23 mi (1,954.12 km) |
| Castellbisbal to Mezdra | 1,112.48 mi (1,790.36 km) |
| Castellbisbal to Momchilgrad | 1,208.85 mi (1,945.46 km) |
