| Seal Beach to Karlovo | 6,659.71 mi (10,717.77 km) |
| Seal Beach to Karnobat | 6,714.81 mi (10,806.44 km) |
| Seal Beach to Kavarna | 6,698.23 mi (10,779.77 km) |
| Seal Beach to Kazanlak | 6,676.43 mi (10,744.68 km) |
| Seal Beach to Knezha | 6,590.18 mi (10,605.87 km) |
| Seal Beach to Kostinbrod | 6,607.98 mi (10,634.52 km) |
| Seal Beach to Kozloduy | 6,564.40 mi (10,564.37 km) |
| Seal Beach to Kyustendil | 6,625.06 mi (10,662.01 km) |
| Seal Beach to Levski | 6,624.81 mi (10,661.60 km) |
| Seal Beach to Lom | 6,549.07 mi (10,539.71 km) |
| Seal Beach to Lovech | 6,628.13 mi (10,666.94 km) |
| Seal Beach to Lukovit | 6,610.13 mi (10,637.98 km) |
| Seal Beach to Lyaskovets | 6,655.40 mi (10,710.83 km) |
| Seal Beach to Mezdra | 6,601.00 mi (10,623.29 km) |
| Seal Beach to Momchilgrad | 6,741.75 mi (10,849.79 km) |
