| Spanish Lake to Smolyan | 5,541.21 mi (8,917.71 km) |
| Spanish Lake to Sofia | 5,437.16 mi (8,750.27 km) |
| Spanish Lake to Sopot | 5,491.75 mi (8,838.12 km) |
| Spanish Lake to Sozopol | 5,609.47 mi (9,027.57 km) |
| Spanish Lake to Sredets | 5,594.93 mi (9,004.18 km) |
| Spanish Lake to Stamboliyski | 5,508.61 mi (8,865.25 km) |
| Spanish Lake to Stara Zagora | 5,534.99 mi (8,907.71 km) |
| Spanish Lake to Svilengrad | 5,587.45 mi (8,992.14 km) |
| Spanish Lake to Svishtov | 5,466.93 mi (8,798.17 km) |
| Spanish Lake to Targovishte | 5,528.75 mi (8,897.66 km) |
| Spanish Lake to Teteven | 5,461.32 mi (8,789.14 km) |
| Spanish Lake to Troyan | 5,479.34 mi (8,818.14 km) |
| Spanish Lake to Tryavna | 5,508.55 mi (8,865.15 km) |
| Spanish Lake to Tutrakan | 5,490.84 mi (8,836.65 km) |
| Spanish Lake to Varna | 5,577.48 mi (8,976.08 km) |
