| Bochum to Smolyan | 1,071.51 mi (1,724.43 km) |
| Bochum to Sofia | 967.32 mi (1,556.76 km) |
| Bochum to Sopot | 1,022.00 mi (1,644.75 km) |
| Bochum to Sozopol | 1,145.34 mi (1,843.25 km) |
| Bochum to Sredets | 1,128.94 mi (1,816.85 km) |
| Bochum to Stamboliyski | 1,038.58 mi (1,671.43 km) |
| Bochum to Stara Zagora | 1,065.90 mi (1,715.41 km) |
| Bochum to Svilengrad | 1,117.89 mi (1,799.06 km) |
| Bochum to Svishtov | 1,001.05 mi (1,611.03 km) |
| Bochum to Targovishte | 1,065.04 mi (1,714.02 km) |
| Bochum to Teteven | 991.49 mi (1,595.64 km) |
| Bochum to Troyan | 1,009.88 mi (1,625.25 km) |
| Bochum to Tryavna | 1,040.27 mi (1,674.15 km) |
| Bochum to Tutrakan | 1,032.45 mi (1,661.57 km) |
| Bochum to Varna | 1,119.05 mi (1,800.94 km) |
