| Altoona to Karlovo | 4,961.26 mi (7,984.38 km) |
| Altoona to Karnobat | 5,047.19 mi (8,122.67 km) |
| Altoona to Kavarna | 5,063.53 mi (8,148.96 km) |
| Altoona to Kazanlak | 4,985.86 mi (8,023.96 km) |
| Altoona to Knezha | 4,895.83 mi (7,879.07 km) |
| Altoona to Kostinbrod | 4,890.56 mi (7,870.59 km) |
| Altoona to Kozloduy | 4,869.98 mi (7,837.48 km) |
| Altoona to Kyustendil | 4,891.75 mi (7,872.51 km) |
| Altoona to Levski | 4,942.79 mi (7,954.65 km) |
| Altoona to Lom | 4,848.66 mi (7,803.16 km) |
| Altoona to Lovech | 4,936.48 mi (7,944.50 km) |
| Altoona to Lukovit | 4,911.96 mi (7,905.03 km) |
| Altoona to Lyaskovets | 4,977.21 mi (8,010.04 km) |
| Altoona to Mezdra | 4,895.62 mi (7,878.74 km) |
| Altoona to Momchilgrad | 5,033.91 mi (8,101.29 km) |
