| Youngsville to Karlovo | 6,009.60 mi (9,671.51 km) |
| Youngsville to Karnobat | 6,094.71 mi (9,808.48 km) |
| Youngsville to Kavarna | 6,109.57 mi (9,832.40 km) |
| Youngsville to Kazanlak | 6,034.02 mi (9,710.82 km) |
| Youngsville to Knezha | 5,943.93 mi (9,565.83 km) |
| Youngsville to Kostinbrod | 5,939.21 mi (9,558.24 km) |
| Youngsville to Kozloduy | 5,918.03 mi (9,524.15 km) |
| Youngsville to Kyustendil | 5,940.63 mi (9,560.52 km) |
| Youngsville to Levski | 5,990.58 mi (9,640.91 km) |
| Youngsville to Lom | 5,896.85 mi (9,490.06 km) |
| Youngsville to Lovech | 5,984.58 mi (9,631.25 km) |
| Youngsville to Lukovit | 5,960.20 mi (9,592.01 km) |
| Youngsville to Lyaskovets | 6,024.95 mi (9,696.22 km) |
| Youngsville to Mezdra | 5,944.02 mi (9,565.98 km) |
| Youngsville to Momchilgrad | 6,082.55 mi (9,788.92 km) |
