| Friedrichsthal to Smolyan | 1,003.33 mi (1,614.71 km) |
| Friedrichsthal to Sofia | 900.79 mi (1,449.68 km) |
| Friedrichsthal to Sopot | 961.58 mi (1,547.52 km) |
| Friedrichsthal to Sozopol | 1,095.40 mi (1,762.88 km) |
| Friedrichsthal to Sredets | 1,076.57 mi (1,732.58 km) |
| Friedrichsthal to Stamboliyski | 973.43 mi (1,566.59 km) |
| Friedrichsthal to Stara Zagora | 1,007.79 mi (1,621.87 km) |
| Friedrichsthal to Svilengrad | 1,057.42 mi (1,701.76 km) |
| Friedrichsthal to Svishtov | 950.81 mi (1,530.18 km) |
| Friedrichsthal to Targovishte | 1,016.90 mi (1,636.54 km) |
| Friedrichsthal to Teteven | 930.95 mi (1,498.21 km) |
| Friedrichsthal to Troyan | 951.09 mi (1,530.63 km) |
| Friedrichsthal to Tryavna | 984.74 mi (1,584.78 km) |
| Friedrichsthal to Tutrakan | 990.87 mi (1,594.65 km) |
| Friedrichsthal to Varna | 1,075.77 mi (1,731.28 km) |
