| Erquelinnes to Karnobat | 1,203.68 mi (1,937.14 km) |
| Erquelinnes to Kavarna | 1,231.37 mi (1,981.69 km) |
| Erquelinnes to Kazanlak | 1,138.07 mi (1,831.55 km) |
| Erquelinnes to Knezha | 1,048.74 mi (1,687.79 km) |
| Erquelinnes to Kostinbrod | 1,040.08 mi (1,673.85 km) |
| Erquelinnes to Kozloduy | 1,023.37 mi (1,646.95 km) |
| Erquelinnes to Kyustendil | 1,040.98 mi (1,675.29 km) |
| Erquelinnes to Levski | 1,097.79 mi (1,766.72 km) |
| Erquelinnes to Lom | 1,001.07 mi (1,611.07 km) |
| Erquelinnes to Lovech | 1,089.27 mi (1,753.01 km) |
| Erquelinnes to Lukovit | 1,063.82 mi (1,712.06 km) |
| Erquelinnes to Lyaskovets | 1,132.45 mi (1,822.50 km) |
| Erquelinnes to Mezdra | 1,046.47 mi (1,684.12 km) |
| Erquelinnes to Momchilgrad | 1,183.42 mi (1,904.52 km) |
| Erquelinnes to Montana | 1,016.55 mi (1,635.99 km) |
