| Three Lakes to Smolyan | 5,775.89 mi (9,295.40 km) |
| Three Lakes to Sofia | 5,677.48 mi (9,137.02 km) |
| Three Lakes to Sopot | 5,742.61 mi (9,241.84 km) |
| Three Lakes to Sozopol | 5,881.03 mi (9,464.60 km) |
| Three Lakes to Sredets | 5,861.39 mi (9,432.99 km) |
| Three Lakes to Stamboliyski | 5,750.08 mi (9,253.86 km) |
| Three Lakes to Stara Zagora | 5,789.93 mi (9,317.99 km) |
| Three Lakes to Svilengrad | 5,837.19 mi (9,394.04 km) |
| Three Lakes to Svishtov | 5,736.80 mi (9,232.48 km) |
| Three Lakes to Targovishte | 5,803.13 mi (9,339.24 km) |
| Three Lakes to Teteven | 5,712.27 mi (9,193.02 km) |
| Three Lakes to Troyan | 5,733.38 mi (9,226.98 km) |
| Three Lakes to Tryavna | 5,768.62 mi (9,283.70 km) |
| Three Lakes to Tutrakan | 5,777.06 mi (9,297.28 km) |
| Three Lakes to Varna | 5,862.23 mi (9,434.35 km) |
