| Frederickson to Karlovo | 5,919.71 mi (9,526.86 km) |
| Frederickson to Karnobat | 5,960.09 mi (9,591.84 km) |
| Frederickson to Kavarna | 5,931.38 mi (9,545.64 km) |
| Frederickson to Kazanlak | 5,932.51 mi (9,547.45 km) |
| Frederickson to Knezha | 5,851.17 mi (9,416.55 km) |
| Frederickson to Kostinbrod | 5,878.11 mi (9,459.90 km) |
| Frederickson to Kozloduy | 5,826.42 mi (9,376.71 km) |
| Frederickson to Kyustendil | 5,901.51 mi (9,497.56 km) |
| Frederickson to Levski | 5,879.35 mi (9,461.89 km) |
| Frederickson to Lom | 5,814.22 mi (9,357.08 km) |
| Frederickson to Lovech | 5,886.51 mi (9,473.42 km) |
| Frederickson to Lukovit | 5,871.95 mi (9,449.99 km) |
| Frederickson to Lyaskovets | 5,907.20 mi (9,506.73 km) |
| Frederickson to Mezdra | 5,866.22 mi (9,440.78 km) |
| Frederickson to Momchilgrad | 6,002.54 mi (9,660.16 km) |
