| San Francisco to Karlovo | 6,512.98 mi (10,481.62 km) |
| San Francisco to Karnobat | 6,559.67 mi (10,556.77 km) |
| San Francisco to Kavarna | 6,535.86 mi (10,518.46 km) |
| San Francisco to Kazanlak | 6,527.48 mi (10,504.96 km) |
| San Francisco to Knezha | 6,443.82 mi (10,370.33 km) |
| San Francisco to Kostinbrod | 6,466.88 mi (10,407.43 km) |
| San Francisco to Kozloduy | 6,418.55 mi (10,329.66 km) |
| San Francisco to Kyustendil | 6,487.57 mi (10,440.74 km) |
| San Francisco to Levski | 6,474.83 mi (10,420.23 km) |
| San Francisco to Lom | 6,404.97 mi (10,307.81 km) |
| San Francisco to Lovech | 6,480.37 mi (10,429.15 km) |
| San Francisco to Lukovit | 6,464.30 mi (10,403.29 km) |
| San Francisco to Lyaskovets | 6,503.92 mi (10,467.04 km) |
| San Francisco to Mezdra | 6,457.09 mi (10,391.68 km) |
| San Francisco to Momchilgrad | 6,595.70 mi (10,614.75 km) |
