| Villanueva de la Serena to Karlovo | 1,611.74 mi (2,593.84 km) |
| Villanueva de la Serena to Karnobat | 1,722.30 mi (2,771.77 km) |
| Villanueva de la Serena to Kavarna | 1,788.23 mi (2,877.87 km) |
| Villanueva de la Serena to Kazanlak | 1,641.91 mi (2,642.40 km) |
| Villanueva de la Serena to Knezha | 1,575.10 mi (2,534.89 km) |
| Villanueva de la Serena to Kostinbrod | 1,530.89 mi (2,463.73 km) |
| Villanueva de la Serena to Kozloduy | 1,558.17 mi (2,507.63 km) |
| Villanueva de la Serena to Kyustendil | 1,503.97 mi (2,420.41 km) |
| Villanueva de la Serena to Levski | 1,627.68 mi (2,619.50 km) |
| Villanueva de la Serena to Lom | 1,533.59 mi (2,468.07 km) |
| Villanueva de la Serena to Lovech | 1,606.74 mi (2,585.80 km) |
| Villanueva de la Serena to Lukovit | 1,579.01 mi (2,541.17 km) |
| Villanueva de la Serena to Lyaskovets | 1,657.17 mi (2,666.96 km) |
| Villanueva de la Serena to Mezdra | 1,555.47 mi (2,503.28 km) |
| Villanueva de la Serena to Momchilgrad | 1,646.69 mi (2,650.10 km) |
