| Santiponce to Karlovo | 1,661.32 mi (2,673.64 km) |
| Santiponce to Karnobat | 1,771.88 mi (2,851.57 km) |
| Santiponce to Kavarna | 1,840.86 mi (2,962.58 km) |
| Santiponce to Kazanlak | 1,691.38 mi (2,722.02 km) |
| Santiponce to Knezha | 1,628.26 mi (2,620.43 km) |
| Santiponce to Kostinbrod | 1,581.30 mi (2,544.85 km) |
| Santiponce to Kozloduy | 1,612.54 mi (2,595.14 km) |
| Santiponce to Kyustendil | 1,552.10 mi (2,497.87 km) |
| Santiponce to Levski | 1,680.17 mi (2,703.98 km) |
| Santiponce to Lom | 1,588.24 mi (2,556.03 km) |
| Santiponce to Lovech | 1,658.34 mi (2,668.84 km) |
| Santiponce to Lukovit | 1,630.92 mi (2,624.72 km) |
| Santiponce to Lyaskovets | 1,708.57 mi (2,749.67 km) |
| Santiponce to Mezdra | 1,607.23 mi (2,586.58 km) |
| Santiponce to Momchilgrad | 1,691.75 mi (2,722.60 km) |
