| Heidelberg to Devnya | 992.70 mi (1,597.60 km) |
| Heidelberg to Dimitrovgrad | 956.96 mi (1,540.08 km) |
| Heidelberg to Dobrich | 991.52 mi (1,595.70 km) |
| Heidelberg to Dospat | 917.54 mi (1,476.64 km) |
| Heidelberg to Dupnitsa | 849.00 mi (1,366.34 km) |
| Heidelberg to Elhovo | 991.59 mi (1,595.81 km) |
| Heidelberg to Etropole | 859.30 mi (1,382.91 km) |
| Heidelberg to Gabrovo | 912.35 mi (1,468.28 km) |
| Heidelberg to Gorna Oryahovitsa | 917.05 mi (1,475.85 km) |
| Heidelberg to Gotse Delchev | 904.57 mi (1,455.77 km) |
| Heidelberg to Harmanli | 974.07 mi (1,567.62 km) |
| Heidelberg to Haskovo | 960.59 mi (1,545.92 km) |
| Heidelberg to Ihtiman | 868.82 mi (1,398.23 km) |
| Heidelberg to Isperih | 943.28 mi (1,518.07 km) |
| Heidelberg to Kardzhali | 964.85 mi (1,552.78 km) |
