| Cuellar to Karlovo | 1,489.80 mi (2,397.59 km) |
| Cuellar to Karnobat | 1,599.63 mi (2,574.35 km) |
| Cuellar to Kavarna | 1,660.49 mi (2,672.31 km) |
| Cuellar to Kazanlak | 1,519.94 mi (2,446.10 km) |
| Cuellar to Knezha | 1,447.88 mi (2,330.13 km) |
| Cuellar to Kostinbrod | 1,408.26 mi (2,266.38 km) |
| Cuellar to Kozloduy | 1,429.17 mi (2,300.03 km) |
| Cuellar to Kyustendil | 1,385.14 mi (2,229.16 km) |
| Cuellar to Levski | 1,501.12 mi (2,415.82 km) |
| Cuellar to Lom | 1,404.33 mi (2,260.06 km) |
| Cuellar to Lovech | 1,481.71 mi (2,384.59 km) |
| Cuellar to Lukovit | 1,453.68 mi (2,339.47 km) |
| Cuellar to Lyaskovets | 1,532.11 mi (2,465.70 km) |
| Cuellar to Mezdra | 1,430.54 mi (2,302.23 km) |
| Cuellar to Momchilgrad | 1,531.61 mi (2,464.89 km) |
