| Baldock to Smolyan | 1,369.37 mi (2,203.79 km) |
| Baldock to Sofia | 1,266.17 mi (2,037.70 km) |
| Baldock to Sopot | 1,325.01 mi (2,132.40 km) |
| Baldock to Sozopol | 1,454.40 mi (2,340.63 km) |
| Baldock to Sredets | 1,436.75 mi (2,312.23 km) |
| Baldock to Stamboliyski | 1,338.53 mi (2,154.16 km) |
| Baldock to Stara Zagora | 1,370.41 mi (2,205.46 km) |
| Baldock to Svilengrad | 1,421.07 mi (2,286.99 km) |
| Baldock to Svishtov | 1,309.63 mi (2,107.65 km) |
| Baldock to Targovishte | 1,374.78 mi (2,212.49 km) |
| Baldock to Teteven | 1,294.35 mi (2,083.06 km) |
| Baldock to Troyan | 1,313.86 mi (2,114.45 km) |
| Baldock to Tryavna | 1,346.20 mi (2,166.49 km) |
| Baldock to Tutrakan | 1,344.86 mi (2,164.34 km) |
| Baldock to Varna | 1,430.99 mi (2,302.96 km) |
