| California to Karlovo | 4,984.39 mi (8,021.60 km) |
| California to Karnobat | 5,073.57 mi (8,165.12 km) |
| California to Kavarna | 5,094.01 mi (8,198.01 km) |
| California to Kazanlak | 5,009.80 mi (8,062.50 km) |
| California to Knezha | 4,920.17 mi (7,918.25 km) |
| California to Kostinbrod | 4,911.79 mi (7,904.76 km) |
| California to Kozloduy | 4,894.58 mi (7,877.06 km) |
| California to Kyustendil | 4,910.75 mi (7,903.09 km) |
| California to Levski | 4,968.32 mi (7,995.73 km) |
| California to Lom | 4,872.65 mi (7,841.78 km) |
| California to Lovech | 4,960.78 mi (7,983.60 km) |
| California to Lukovit | 4,935.62 mi (7,943.11 km) |
| California to Lyaskovets | 5,002.90 mi (8,051.39 km) |
| California to Mezdra | 4,918.46 mi (7,915.49 km) |
| California to Momchilgrad | 5,055.03 mi (8,135.28 km) |
