| Buckeye to Karlovo | 6,531.51 mi (10,511.45 km) |
| Buckeye to Karnobat | 6,593.45 mi (10,611.13 km) |
| Buckeye to Kavarna | 6,583.27 mi (10,594.74 km) |
| Buckeye to Kazanlak | 6,550.01 mi (10,541.22 km) |
| Buckeye to Knezha | 6,462.06 mi (10,399.69 km) |
| Buckeye to Kostinbrod | 6,475.36 mi (10,421.08 km) |
| Buckeye to Kozloduy | 6,435.99 mi (10,357.72 km) |
| Buckeye to Kyustendil | 6,489.35 mi (10,443.60 km) |
| Buckeye to Levski | 6,499.55 mi (10,460.02 km) |
| Buckeye to Lom | 6,419.28 mi (10,330.84 km) |
| Buckeye to Lovech | 6,500.96 mi (10,462.29 km) |
| Buckeye to Lukovit | 6,481.45 mi (10,430.89 km) |
| Buckeye to Lyaskovets | 6,531.25 mi (10,511.04 km) |
| Buckeye to Mezdra | 6,470.76 mi (10,413.69 km) |
| Buckeye to Momchilgrad | 6,612.50 mi (10,641.79 km) |
