| Glenn Dale to Devnya | 5,052.89 mi (8,131.84 km) |
| Glenn Dale to Dimitrovgrad | 5,023.12 mi (8,083.93 km) |
| Glenn Dale to Dobrich | 5,048.49 mi (8,124.75 km) |
| Glenn Dale to Dospat | 4,980.84 mi (8,015.89 km) |
| Glenn Dale to Dupnitsa | 4,912.28 mi (7,905.55 km) |
| Glenn Dale to Elhovo | 5,057.48 mi (8,139.22 km) |
| Glenn Dale to Etropole | 4,925.38 mi (7,926.63 km) |
| Glenn Dale to Gabrovo | 4,978.20 mi (8,011.64 km) |
| Glenn Dale to Gorna Oryahovitsa | 4,981.89 mi (8,017.58 km) |
| Glenn Dale to Gotse Delchev | 4,966.29 mi (7,992.47 km) |
| Glenn Dale to Harmanli | 5,040.25 mi (8,111.51 km) |
| Glenn Dale to Haskovo | 5,026.65 mi (8,089.61 km) |
| Glenn Dale to Ihtiman | 4,934.04 mi (7,940.57 km) |
| Glenn Dale to Isperih | 5,002.65 mi (8,050.99 km) |
| Glenn Dale to Kardzhali | 5,030.32 mi (8,095.53 km) |
