| Heilbronn to Devnya | 965.52 mi (1,553.86 km) |
| Heilbronn to Dimitrovgrad | 928.66 mi (1,494.54 km) |
| Heilbronn to Dobrich | 964.65 mi (1,552.45 km) |
| Heilbronn to Dospat | 888.81 mi (1,430.40 km) |
| Heilbronn to Dupnitsa | 820.26 mi (1,320.08 km) |
| Heilbronn to Elhovo | 963.57 mi (1,550.72 km) |
| Heilbronn to Etropole | 830.95 mi (1,337.29 km) |
| Heilbronn to Gabrovo | 884.35 mi (1,423.22 km) |
| Heilbronn to Gorna Oryahovitsa | 889.29 mi (1,431.18 km) |
| Heilbronn to Gotse Delchev | 875.75 mi (1,409.38 km) |
| Heilbronn to Harmanli | 945.80 mi (1,522.11 km) |
| Heilbronn to Haskovo | 932.24 mi (1,500.29 km) |
| Heilbronn to Ihtiman | 840.27 mi (1,352.28 km) |
| Heilbronn to Isperih | 916.22 mi (1,474.52 km) |
| Heilbronn to Kardzhali | 936.35 mi (1,506.92 km) |
