| Turku to Smolyan | 1,307.63 mi (2,104.42 km) |
| Turku to Sofia | 1,227.22 mi (1,975.01 km) |
| Turku to Sopot | 1,234.26 mi (1,986.36 km) |
| Turku to Sozopol | 1,266.73 mi (2,038.61 km) |
| Turku to Sredets | 1,267.68 mi (2,040.14 km) |
| Turku to Stamboliyski | 1,269.16 mi (2,042.52 km) |
| Turku to Stara Zagora | 1,252.93 mi (2,016.39 km) |
| Turku to Svilengrad | 1,301.56 mi (2,094.65 km) |
| Turku to Svishtov | 1,170.11 mi (1,883.12 km) |
| Turku to Targovishte | 1,201.97 mi (1,934.39 km) |
| Turku to Teteven | 1,214.32 mi (1,954.26 km) |
| Turku to Troyan | 1,218.07 mi (1,960.29 km) |
| Turku to Tryavna | 1,222.39 mi (1,967.25 km) |
| Turku to Tutrakan | 1,147.36 mi (1,846.50 km) |
| Turku to Varna | 1,213.82 mi (1,953.45 km) |
