| Castellammare del Golfo to Karlovo | 703.61 mi (1,132.35 km) |
| Castellammare del Golfo to Karnobat | 806.84 mi (1,298.48 km) |
| Castellammare del Golfo to Kavarna | 889.33 mi (1,431.24 km) |
| Castellammare del Golfo to Kazanlak | 730.80 mi (1,176.11 km) |
| Castellammare del Golfo to Knezha | 696.72 mi (1,121.26 km) |
| Castellammare del Golfo to Kostinbrod | 635.81 mi (1,023.23 km) |
| Castellammare del Golfo to Kozloduy | 691.46 mi (1,112.79 km) |
| Castellammare del Golfo to Kyustendil | 594.83 mi (957.29 km) |
| Castellammare del Golfo to Levski | 739.25 mi (1,189.71 km) |
| Castellammare del Golfo to Lom | 672.10 mi (1,081.64 km) |
| Castellammare del Golfo to Lovech | 713.43 mi (1,148.15 km) |
| Castellammare del Golfo to Lukovit | 690.61 mi (1,111.44 km) |
| Castellammare del Golfo to Lyaskovets | 758.34 mi (1,220.44 km) |
| Castellammare del Golfo to Mezdra | 668.21 mi (1,075.38 km) |
| Castellammare del Golfo to Momchilgrad | 707.57 mi (1,138.72 km) |
