| Drexel Heights to Karlovo | 6,561.18 mi (10,559.20 km) |
| Drexel Heights to Karnobat | 6,625.98 mi (10,663.49 km) |
| Drexel Heights to Kavarna | 6,618.55 mi (10,651.52 km) |
| Drexel Heights to Kazanlak | 6,580.43 mi (10,590.18 km) |
| Drexel Heights to Knezha | 6,491.89 mi (10,447.69 km) |
| Drexel Heights to Kostinbrod | 6,503.18 mi (10,465.86 km) |
| Drexel Heights to Kozloduy | 6,465.73 mi (10,405.58 km) |
| Drexel Heights to Kyustendil | 6,515.79 mi (10,486.14 km) |
| Drexel Heights to Levski | 6,530.56 mi (10,509.93 km) |
| Drexel Heights to Lom | 6,448.45 mi (10,377.78 km) |
| Drexel Heights to Lovech | 6,531.14 mi (10,510.86 km) |
| Drexel Heights to Lukovit | 6,511.00 mi (10,478.45 km) |
| Drexel Heights to Lyaskovets | 6,562.69 mi (10,561.63 km) |
| Drexel Heights to Mezdra | 6,499.64 mi (10,460.17 km) |
| Drexel Heights to Momchilgrad | 6,641.58 mi (10,688.59 km) |
