| Wallingford to Karlovo | 1,357.22 mi (2,184.23 km) |
| Wallingford to Karnobat | 1,447.61 mi (2,329.70 km) |
| Wallingford to Kavarna | 1,473.29 mi (2,371.03 km) |
| Wallingford to Kazanlak | 1,382.70 mi (2,225.24 km) |
| Wallingford to Knezha | 1,293.21 mi (2,081.22 km) |
| Wallingford to Kostinbrod | 1,285.11 mi (2,068.18 km) |
| Wallingford to Kozloduy | 1,267.73 mi (2,040.22 km) |
| Wallingford to Kyustendil | 1,285.93 mi (2,069.51 km) |
| Wallingford to Levski | 1,341.90 mi (2,159.58 km) |
| Wallingford to Lom | 1,245.61 mi (2,004.61 km) |
| Wallingford to Lovech | 1,333.78 mi (2,146.51 km) |
| Wallingford to Lukovit | 1,308.48 mi (2,105.80 km) |
| Wallingford to Lyaskovets | 1,376.54 mi (2,215.33 km) |
| Wallingford to Mezdra | 1,291.30 mi (2,078.14 km) |
| Wallingford to Momchilgrad | 1,428.45 mi (2,298.87 km) |
