| Schwalbach to Smolyan | 1,013.48 mi (1,631.03 km) |
| Schwalbach to Sofia | 911.10 mi (1,466.27 km) |
| Schwalbach to Sopot | 972.20 mi (1,564.61 km) |
| Schwalbach to Sozopol | 1,106.50 mi (1,780.74 km) |
| Schwalbach to Sredets | 1,087.56 mi (1,750.26 km) |
| Schwalbach to Stamboliyski | 983.77 mi (1,583.23 km) |
| Schwalbach to Stara Zagora | 1,018.51 mi (1,639.13 km) |
| Schwalbach to Svilengrad | 1,067.99 mi (1,718.77 km) |
| Schwalbach to Svishtov | 961.96 mi (1,548.13 km) |
| Schwalbach to Targovishte | 1,028.11 mi (1,654.59 km) |
| Schwalbach to Teteven | 941.58 mi (1,515.32 km) |
| Schwalbach to Troyan | 961.81 mi (1,547.88 km) |
| Schwalbach to Tryavna | 995.61 mi (1,602.28 km) |
| Schwalbach to Tutrakan | 1,002.39 mi (1,613.19 km) |
| Schwalbach to Varna | 1,087.18 mi (1,749.65 km) |
