| Sunderland to Karlovo | 1,448.82 mi (2,331.65 km) |
| Sunderland to Karnobat | 1,528.66 mi (2,460.14 km) |
| Sunderland to Kavarna | 1,541.69 mi (2,481.11 km) |
| Sunderland to Kazanlak | 1,471.55 mi (2,368.24 km) |
| Sunderland to Knezha | 1,381.35 mi (2,223.07 km) |
| Sunderland to Kostinbrod | 1,383.49 mi (2,226.51 km) |
| Sunderland to Kozloduy | 1,355.18 mi (2,180.95 km) |
| Sunderland to Kyustendil | 1,391.43 mi (2,239.30 km) |
| Sunderland to Levski | 1,425.92 mi (2,294.79 km) |
| Sunderland to Lom | 1,335.24 mi (2,148.85 km) |
| Sunderland to Lovech | 1,421.82 mi (2,288.19 km) |
| Sunderland to Lukovit | 1,398.76 mi (2,251.08 km) |
| Sunderland to Lyaskovets | 1,459.92 mi (2,349.52 km) |
| Sunderland to Mezdra | 1,384.39 mi (2,227.95 km) |
| Sunderland to Momchilgrad | 1,525.51 mi (2,455.07 km) |
