| Killeen to Karlovo | 6,175.57 mi (9,938.62 km) |
| Killeen to Karnobat | 6,254.95 mi (10,066.37 km) |
| Killeen to Kavarna | 6,262.99 mi (10,079.31 km) |
| Killeen to Kazanlak | 6,198.55 mi (9,975.60 km) |
| Killeen to Knezha | 6,108.33 mi (9,830.41 km) |
| Killeen to Kostinbrod | 6,108.57 mi (9,830.80 km) |
| Killeen to Kozloduy | 6,082.18 mi (9,788.32 km) |
| Killeen to Kyustendil | 6,113.48 mi (9,838.70 km) |
| Killeen to Levski | 6,152.82 mi (9,902.01 km) |
| Killeen to Lom | 6,062.07 mi (9,755.96 km) |
| Killeen to Lovech | 6,148.82 mi (9,895.57 km) |
| Killeen to Lukovit | 6,125.60 mi (9,858.20 km) |
| Killeen to Lyaskovets | 6,186.72 mi (9,956.57 km) |
| Killeen to Mezdra | 6,110.81 mi (9,834.40 km) |
| Killeen to Momchilgrad | 6,251.33 mi (10,060.54 km) |
