| Drexel Heights to Devnya | 6,609.45 mi (10,636.89 km) |
| Drexel Heights to Dimitrovgrad | 6,618.16 mi (10,650.90 km) |
| Drexel Heights to Dobrich | 6,596.94 mi (10,616.75 km) |
| Drexel Heights to Dospat | 6,596.79 mi (10,616.51 km) |
| Drexel Heights to Dupnitsa | 6,530.39 mi (10,509.65 km) |
| Drexel Heights to Elhovo | 6,640.29 mi (10,686.51 km) |
| Drexel Heights to Etropole | 6,526.25 mi (10,502.98 km) |
| Drexel Heights to Gabrovo | 6,564.45 mi (10,564.46 km) |
| Drexel Heights to Gorna Oryahovitsa | 6,560.33 mi (10,557.83 km) |
| Drexel Heights to Gotse Delchev | 6,587.92 mi (10,602.24 km) |
| Drexel Heights to Harmanli | 6,633.69 mi (10,675.90 km) |
| Drexel Heights to Haskovo | 6,623.71 mi (10,659.82 km) |
| Drexel Heights to Ihtiman | 6,542.50 mi (10,529.13 km) |
| Drexel Heights to Isperih | 6,560.15 mi (10,557.55 km) |
| Drexel Heights to Kardzhali | 6,633.53 mi (10,675.64 km) |
