| Bellflower to Smolyan | 6,713.35 mi (10,804.09 km) |
| Bellflower to Sofia | 6,611.12 mi (10,639.58 km) |
| Bellflower to Sopot | 6,651.02 mi (10,703.78 km) |
| Bellflower to Sozopol | 6,738.28 mi (10,844.21 km) |
| Bellflower to Sredets | 6,730.26 mi (10,831.31 km) |
| Bellflower to Stamboliyski | 6,676.23 mi (10,744.36 km) |
| Bellflower to Stara Zagora | 6,686.86 mi (10,761.46 km) |
| Bellflower to Svilengrad | 6,740.83 mi (10,848.31 km) |
| Bellflower to Svishtov | 6,608.32 mi (10,635.06 km) |
| Bellflower to Targovishte | 6,660.70 mi (10,719.36 km) |
| Bellflower to Teteven | 6,622.72 mi (10,658.23 km) |
| Bellflower to Troyan | 6,636.25 mi (10,680.01 km) |
| Bellflower to Tryavna | 6,657.05 mi (10,713.49 km) |
| Bellflower to Tutrakan | 6,613.08 mi (10,642.72 km) |
| Bellflower to Varna | 6,694.60 mi (10,773.92 km) |
