| South Plainfield to Karlovo | 4,798.26 mi (7,722.06 km) |
| South Plainfield to Karnobat | 4,886.60 mi (7,864.23 km) |
| South Plainfield to Kavarna | 4,906.05 mi (7,895.52 km) |
| South Plainfield to Kazanlak | 4,823.46 mi (7,762.61 km) |
| South Plainfield to Knezha | 4,733.70 mi (7,618.16 km) |
| South Plainfield to Kostinbrod | 4,726.17 mi (7,606.04 km) |
| South Plainfield to Kozloduy | 4,708.04 mi (7,576.86 km) |
| South Plainfield to Kyustendil | 4,725.78 mi (7,605.41 km) |
| South Plainfield to Levski | 4,781.55 mi (7,695.16 km) |
| South Plainfield to Lom | 4,686.27 mi (7,541.82 km) |
| South Plainfield to Lovech | 4,774.33 mi (7,683.54 km) |
| South Plainfield to Lukovit | 4,749.34 mi (7,643.32 km) |
| South Plainfield to Lyaskovets | 4,816.10 mi (7,750.76 km) |
| South Plainfield to Mezdra | 4,732.40 mi (7,616.06 km) |
| South Plainfield to Momchilgrad | 4,869.48 mi (7,836.67 km) |
