| Valley Center to Karlovo | 6,664.33 mi (10,725.20 km) |
| Valley Center to Karnobat | 6,721.14 mi (10,816.62 km) |
| Valley Center to Kavarna | 6,706.11 mi (10,792.44 km) |
| Valley Center to Kazanlak | 6,681.50 mi (10,752.84 km) |
| Valley Center to Knezha | 6,594.79 mi (10,613.29 km) |
| Valley Center to Kostinbrod | 6,611.48 mi (10,640.14 km) |
| Valley Center to Kozloduy | 6,568.92 mi (10,571.65 km) |
| Valley Center to Kyustendil | 6,627.79 mi (10,666.40 km) |
| Valley Center to Levski | 6,630.14 mi (10,670.17 km) |
| Valley Center to Lom | 6,553.24 mi (10,546.42 km) |
| Valley Center to Lovech | 6,632.99 mi (10,674.76 km) |
| Valley Center to Lukovit | 6,614.61 mi (10,645.18 km) |
| Valley Center to Lyaskovets | 6,661.02 mi (10,719.87 km) |
| Valley Center to Mezdra | 6,605.09 mi (10,629.86 km) |
| Valley Center to Momchilgrad | 6,746.15 mi (10,856.87 km) |
