| Gladenbach to Smolyan | 994.92 mi (1,601.16 km) |
| Gladenbach to Sofia | 890.78 mi (1,433.58 km) |
| Gladenbach to Sopot | 946.02 mi (1,522.46 km) |
| Gladenbach to Sozopol | 1,070.72 mi (1,723.16 km) |
| Gladenbach to Sredets | 1,053.97 mi (1,696.20 km) |
| Gladenbach to Stamboliyski | 962.19 mi (1,548.49 km) |
| Gladenbach to Stara Zagora | 990.19 mi (1,593.56 km) |
| Gladenbach to Svilengrad | 1,041.97 mi (1,676.90 km) |
| Gladenbach to Svishtov | 926.23 mi (1,490.62 km) |
| Gladenbach to Targovishte | 990.60 mi (1,594.21 km) |
| Gladenbach to Teteven | 915.46 mi (1,473.30 km) |
| Gladenbach to Troyan | 934.05 mi (1,503.21 km) |
| Gladenbach to Tryavna | 964.83 mi (1,552.74 km) |
| Gladenbach to Tutrakan | 958.98 mi (1,543.33 km) |
| Gladenbach to Varna | 1,045.41 mi (1,682.43 km) |
