| Obersiggenthal to Devnya | 978.31 mi (1,574.43 km) |
| Obersiggenthal to Dimitrovgrad | 925.78 mi (1,489.90 km) |
| Obersiggenthal to Dobrich | 980.92 mi (1,578.64 km) |
| Obersiggenthal to Dospat | 877.06 mi (1,411.48 km) |
| Obersiggenthal to Dupnitsa | 808.85 mi (1,301.71 km) |
| Obersiggenthal to Elhovo | 965.10 mi (1,553.17 km) |
| Obersiggenthal to Etropole | 828.19 mi (1,332.84 km) |
| Obersiggenthal to Gabrovo | 886.98 mi (1,427.45 km) |
| Obersiggenthal to Gorna Oryahovitsa | 895.43 mi (1,441.05 km) |
| Obersiggenthal to Gotse Delchev | 861.45 mi (1,386.38 km) |
| Obersiggenthal to Harmanli | 943.16 mi (1,517.86 km) |
| Obersiggenthal to Haskovo | 928.34 mi (1,494.02 km) |
| Obersiggenthal to Ihtiman | 833.36 mi (1,341.17 km) |
| Obersiggenthal to Isperih | 930.81 mi (1,498.00 km) |
| Obersiggenthal to Kardzhali | 929.54 mi (1,495.95 km) |
