| Friedberg to Smolyan | 815.50 mi (1,312.43 km) |
| Friedberg to Sofia | 712.53 mi (1,146.71 km) |
| Friedberg to Sopot | 772.65 mi (1,243.46 km) |
| Friedberg to Sozopol | 906.31 mi (1,458.56 km) |
| Friedberg to Sredets | 887.41 mi (1,428.15 km) |
| Friedberg to Stamboliyski | 785.05 mi (1,263.41 km) |
| Friedberg to Stara Zagora | 818.73 mi (1,317.62 km) |
| Friedberg to Svilengrad | 868.56 mi (1,397.82 km) |
| Friedberg to Svishtov | 761.76 mi (1,225.94 km) |
| Friedberg to Targovishte | 827.94 mi (1,332.44 km) |
| Friedberg to Teteven | 742.00 mi (1,194.14 km) |
| Friedberg to Troyan | 762.04 mi (1,226.39 km) |
| Friedberg to Tryavna | 795.58 mi (1,280.37 km) |
| Friedberg to Tutrakan | 802.68 mi (1,291.78 km) |
| Friedberg to Varna | 887.22 mi (1,427.85 km) |
