| Wiehl to Smolyan | 1,040.25 mi (1,674.12 km) |
| Wiehl to Sofia | 936.22 mi (1,506.69 km) |
| Wiehl to Sopot | 992.07 mi (1,596.59 km) |
| Wiehl to Sozopol | 1,117.57 mi (1,798.56 km) |
| Wiehl to Sredets | 1,100.68 mi (1,771.37 km) |
| Wiehl to Stamboliyski | 1,007.82 mi (1,621.92 km) |
| Wiehl to Stara Zagora | 1,036.47 mi (1,668.03 km) |
| Wiehl to Svilengrad | 1,088.08 mi (1,751.10 km) |
| Wiehl to Svishtov | 973.01 mi (1,565.91 km) |
| Wiehl to Targovishte | 1,037.52 mi (1,669.72 km) |
| Wiehl to Teteven | 961.49 mi (1,547.37 km) |
| Wiehl to Troyan | 980.24 mi (1,577.54 km) |
| Wiehl to Tryavna | 1,011.28 mi (1,627.50 km) |
| Wiehl to Tutrakan | 1,006.18 mi (1,619.30 km) |
| Wiehl to Varna | 1,092.57 mi (1,758.32 km) |
