| Balderton to Smolyan | 1,420.39 mi (2,285.90 km) |
| Balderton to Sofia | 1,316.62 mi (2,118.89 km) |
| Balderton to Sopot | 1,373.47 mi (2,210.39 km) |
| Balderton to Sozopol | 1,499.24 mi (2,412.79 km) |
| Balderton to Sredets | 1,482.44 mi (2,385.75 km) |
| Balderton to Stamboliyski | 1,388.55 mi (2,234.65 km) |
| Balderton to Stara Zagora | 1,418.08 mi (2,282.19 km) |
| Balderton to Svilengrad | 1,469.52 mi (2,364.96 km) |
| Balderton to Svishtov | 1,354.73 mi (2,180.23 km) |
| Balderton to Targovishte | 1,419.09 mi (2,283.81 km) |
| Balderton to Teteven | 1,342.86 mi (2,161.12 km) |
| Balderton to Troyan | 1,361.78 mi (2,191.58 km) |
| Balderton to Tryavna | 1,393.03 mi (2,241.86 km) |
| Balderton to Tutrakan | 1,387.00 mi (2,232.15 km) |
| Balderton to Varna | 1,473.55 mi (2,371.46 km) |
