| Holt to Smolyan | 5,142.79 mi (8,276.52 km) |
| Holt to Sofia | 5,038.79 mi (8,109.14 km) |
| Holt to Sopot | 5,093.66 mi (8,197.46 km) |
| Holt to Sozopol | 5,212.12 mi (8,388.10 km) |
| Holt to Sredets | 5,197.39 mi (8,364.40 km) |
| Holt to Stamboliyski | 5,110.31 mi (8,224.25 km) |
| Holt to Stara Zagora | 5,137.05 mi (8,267.28 km) |
| Holt to Svilengrad | 5,189.42 mi (8,351.56 km) |
| Holt to Svishtov | 5,069.36 mi (8,158.34 km) |
| Holt to Targovishte | 5,131.40 mi (8,258.19 km) |
| Holt to Teteven | 5,063.20 mi (8,148.43 km) |
| Holt to Troyan | 5,081.32 mi (8,177.59 km) |
| Holt to Tryavna | 5,110.72 mi (8,224.91 km) |
| Holt to Tutrakan | 5,093.88 mi (8,197.81 km) |
| Holt to Varna | 5,180.58 mi (8,337.33 km) |
