| Youngstown to Karlovo | 5,022.05 mi (8,082.21 km) |
| Youngstown to Karnobat | 5,105.94 mi (8,217.22 km) |
| Youngstown to Kavarna | 5,119.77 mi (8,239.47 km) |
| Youngstown to Kazanlak | 5,046.14 mi (8,120.97 km) |
| Youngstown to Knezha | 4,955.97 mi (7,975.86 km) |
| Youngstown to Kostinbrod | 4,952.55 mi (7,970.36 km) |
| Youngstown to Kozloduy | 4,930.00 mi (7,934.06 km) |
| Youngstown to Kyustendil | 4,955.05 mi (7,974.38 km) |
| Youngstown to Levski | 5,002.17 mi (8,050.21 km) |
| Youngstown to Lom | 4,909.05 mi (7,900.36 km) |
| Youngstown to Lovech | 4,996.60 mi (8,041.25 km) |
| Youngstown to Lukovit | 4,972.48 mi (8,002.44 km) |
| Youngstown to Lyaskovets | 5,036.45 mi (8,105.38 km) |
| Youngstown to Mezdra | 4,956.65 mi (7,976.96 km) |
| Youngstown to Momchilgrad | 5,095.81 mi (8,200.91 km) |
