| Lubbock to Karlovo | 6,185.57 mi (9,954.71 km) |
| Lubbock to Karnobat | 6,258.94 mi (10,072.80 km) |
| Lubbock to Kavarna | 6,260.40 mi (10,075.14 km) |
| Lubbock to Kazanlak | 6,207.01 mi (9,989.22 km) |
| Lubbock to Knezha | 6,117.19 mi (9,844.66 km) |
| Lubbock to Kostinbrod | 6,122.26 mi (9,852.82 km) |
| Lubbock to Kozloduy | 6,090.93 mi (9,802.41 km) |
| Lubbock to Kyustendil | 6,130.56 mi (9,866.19 km) |
| Lubbock to Levski | 6,159.32 mi (9,912.47 km) |
| Lubbock to Lom | 6,071.98 mi (9,771.91 km) |
| Lubbock to Lovech | 6,157.29 mi (9,909.20 km) |
| Lubbock to Lukovit | 6,135.32 mi (9,873.85 km) |
| Lubbock to Lyaskovets | 6,192.58 mi (9,966.00 km) |
| Lubbock to Mezdra | 6,121.98 mi (9,852.37 km) |
| Lubbock to Momchilgrad | 6,263.63 mi (10,080.34 km) |
