| Harborne to Devnya | 1,496.64 mi (2,408.61 km) |
| Harborne to Dimitrovgrad | 1,465.75 mi (2,358.89 km) |
| Harborne to Dobrich | 1,493.65 mi (2,403.80 km) |
| Harborne to Dospat | 1,426.59 mi (2,295.87 km) |
| Harborne to Dupnitsa | 1,358.02 mi (2,185.53 km) |
| Harborne to Elhovo | 1,499.52 mi (2,413.24 km) |
| Harborne to Etropole | 1,368.21 mi (2,201.92 km) |
| Harborne to Gabrovo | 1,420.24 mi (2,285.66 km) |
| Harborne to Gorna Oryahovitsa | 1,423.99 mi (2,291.69 km) |
| Harborne to Gotse Delchev | 1,413.37 mi (2,274.59 km) |
| Harborne to Harmanli | 1,482.80 mi (2,386.34 km) |
| Harborne to Haskovo | 1,469.49 mi (2,364.92 km) |
| Harborne to Ihtiman | 1,377.97 mi (2,217.63 km) |
| Harborne to Isperih | 1,446.68 mi (2,328.20 km) |
| Harborne to Kardzhali | 1,473.97 mi (2,372.12 km) |
