| Guardamar del Segura to Karlovo | 1,371.20 mi (2,206.74 km) |
| Guardamar del Segura to Karnobat | 1,481.52 mi (2,384.28 km) |
| Guardamar del Segura to Kavarna | 1,552.82 mi (2,499.02 km) |
| Guardamar del Segura to Kazanlak | 1,401.11 mi (2,254.87 km) |
| Guardamar del Segura to Knezha | 1,341.25 mi (2,158.53 km) |
| Guardamar del Segura to Kostinbrod | 1,292.04 mi (2,079.33 km) |
| Guardamar del Segura to Kozloduy | 1,326.75 mi (2,135.19 km) |
| Guardamar del Segura to Kyustendil | 1,261.17 mi (2,029.66 km) |
| Guardamar del Segura to Levski | 1,392.41 mi (2,240.86 km) |
| Guardamar del Segura to Lom | 1,302.80 mi (2,096.66 km) |
| Guardamar del Segura to Lovech | 1,369.85 mi (2,204.56 km) |
| Guardamar del Segura to Lukovit | 1,342.79 mi (2,161.01 km) |
| Guardamar del Segura to Lyaskovets | 1,419.78 mi (2,284.92 km) |
| Guardamar del Segura to Mezdra | 1,319.03 mi (2,122.77 km) |
| Guardamar del Segura to Momchilgrad | 1,398.53 mi (2,250.72 km) |
