| Drexel Hill to Devnya | 4,948.76 mi (7,964.26 km) |
| Drexel Hill to Dimitrovgrad | 4,918.91 mi (7,916.22 km) |
| Drexel Hill to Dobrich | 4,944.38 mi (7,957.22 km) |
| Drexel Hill to Dospat | 4,876.64 mi (7,848.20 km) |
| Drexel Hill to Dupnitsa | 4,808.08 mi (7,737.86 km) |
| Drexel Hill to Elhovo | 4,953.28 mi (7,971.53 km) |
| Drexel Hill to Etropole | 4,821.17 mi (7,758.92 km) |
| Drexel Hill to Gabrovo | 4,874.00 mi (7,843.95 km) |
| Drexel Hill to Gorna Oryahovitsa | 4,877.71 mi (7,849.92 km) |
| Drexel Hill to Gotse Delchev | 4,862.10 mi (7,824.79 km) |
| Drexel Hill to Harmanli | 4,936.05 mi (7,943.80 km) |
| Drexel Hill to Haskovo | 4,922.44 mi (7,921.91 km) |
| Drexel Hill to Ihtiman | 4,829.84 mi (7,772.87 km) |
| Drexel Hill to Isperih | 4,898.53 mi (7,883.42 km) |
| Drexel Hill to Kardzhali | 4,926.12 mi (7,927.82 km) |
