| Central Islip to Karlovo | 4,739.39 mi (7,627.32 km) |
| Central Islip to Karnobat | 4,828.26 mi (7,770.33 km) |
| Central Islip to Kavarna | 4,848.40 mi (7,802.75 km) |
| Central Islip to Kazanlak | 4,764.72 mi (7,668.08 km) |
| Central Islip to Knezha | 4,675.04 mi (7,523.75 km) |
| Central Islip to Kostinbrod | 4,667.01 mi (7,510.83 km) |
| Central Islip to Kozloduy | 4,649.42 mi (7,482.52 km) |
| Central Islip to Kyustendil | 4,666.27 mi (7,509.63 km) |
| Central Islip to Levski | 4,723.08 mi (7,601.06 km) |
| Central Islip to Lom | 4,627.55 mi (7,447.33 km) |
| Central Islip to Lovech | 4,715.65 mi (7,589.11 km) |
| Central Islip to Lukovit | 4,690.56 mi (7,548.73 km) |
| Central Islip to Lyaskovets | 4,757.65 mi (7,656.69 km) |
| Central Islip to Mezdra | 4,673.49 mi (7,521.25 km) |
| Central Islip to Momchilgrad | 4,810.28 mi (7,741.40 km) |
