| Obersiggenthal to Smolyan | 902.75 mi (1,452.84 km) |
| Obersiggenthal to Sofia | 802.87 mi (1,292.09 km) |
| Obersiggenthal to Sopot | 867.70 mi (1,396.43 km) |
| Obersiggenthal to Sozopol | 1,008.29 mi (1,622.69 km) |
| Obersiggenthal to Sredets | 987.72 mi (1,589.58 km) |
| Obersiggenthal to Stamboliyski | 875.60 mi (1,409.14 km) |
| Obersiggenthal to Stara Zagora | 915.14 mi (1,472.77 km) |
| Obersiggenthal to Svilengrad | 962.29 mi (1,548.65 km) |
| Obersiggenthal to Svishtov | 865.46 mi (1,392.83 km) |
| Obersiggenthal to Targovishte | 932.28 mi (1,500.37 km) |
| Obersiggenthal to Teteven | 837.42 mi (1,347.69 km) |
| Obersiggenthal to Troyan | 858.68 mi (1,381.91 km) |
| Obersiggenthal to Tryavna | 894.50 mi (1,439.56 km) |
| Obersiggenthal to Tutrakan | 912.15 mi (1,467.96 km) |
| Obersiggenthal to Varna | 994.39 mi (1,600.32 km) |
