| Sastamala to Smolyan | 1,367.23 mi (2,200.34 km) |
| Sastamala to Sofia | 1,288.13 mi (2,073.05 km) |
| Sastamala to Sopot | 1,293.72 mi (2,082.04 km) |
| Sastamala to Sozopol | 1,322.61 mi (2,128.54 km) |
| Sastamala to Sredets | 1,324.24 mi (2,131.15 km) |
| Sastamala to Stamboliyski | 1,328.89 mi (2,138.64 km) |
| Sastamala to Stara Zagora | 1,311.38 mi (2,110.47 km) |
| Sastamala to Svilengrad | 1,359.46 mi (2,187.84 km) |
| Sastamala to Svishtov | 1,228.77 mi (1,977.52 km) |
| Sastamala to Targovishte | 1,259.14 mi (2,026.39 km) |
| Sastamala to Teteven | 1,274.28 mi (2,050.76 km) |
| Sastamala to Troyan | 1,277.54 mi (2,056.00 km) |
| Sastamala to Tryavna | 1,280.97 mi (2,061.52 km) |
| Sastamala to Tutrakan | 1,204.32 mi (1,938.16 km) |
| Sastamala to Varna | 1,269.19 mi (2,042.56 km) |
