| Waterbury to Karlovo | 4,699.72 mi (7,563.47 km) |
| Waterbury to Karnobat | 4,787.93 mi (7,705.43 km) |
| Waterbury to Kavarna | 4,807.25 mi (7,736.52 km) |
| Waterbury to Kazanlak | 4,724.88 mi (7,603.96 km) |
| Waterbury to Knezha | 4,635.10 mi (7,459.48 km) |
| Waterbury to Kostinbrod | 4,627.72 mi (7,447.59 km) |
| Waterbury to Kozloduy | 4,609.43 mi (7,418.16 km) |
| Waterbury to Kyustendil | 4,627.45 mi (7,447.16 km) |
| Waterbury to Levski | 4,682.90 mi (7,536.40 km) |
| Waterbury to Lom | 4,587.68 mi (7,383.16 km) |
| Waterbury to Lovech | 4,675.73 mi (7,524.87 km) |
| Waterbury to Lukovit | 4,650.77 mi (7,484.68 km) |
| Waterbury to Lyaskovets | 4,717.44 mi (7,591.99 km) |
| Waterbury to Mezdra | 4,633.86 mi (7,457.48 km) |
| Waterbury to Momchilgrad | 4,771.03 mi (7,678.24 km) |
