| Frodsham to Smolyan | 1,501.42 mi (2,416.30 km) |
| Frodsham to Sofia | 1,397.77 mi (2,249.49 km) |
| Frodsham to Sopot | 1,455.07 mi (2,341.70 km) |
| Frodsham to Sozopol | 1,581.41 mi (2,545.04 km) |
| Frodsham to Sredets | 1,564.51 mi (2,517.83 km) |
| Frodsham to Stamboliyski | 1,469.81 mi (2,365.44 km) |
| Frodsham to Stara Zagora | 1,499.83 mi (2,413.75 km) |
| Frodsham to Svilengrad | 1,551.13 mi (2,496.31 km) |
| Frodsham to Svishtov | 1,436.86 mi (2,312.40 km) |
| Frodsham to Targovishte | 1,501.32 mi (2,416.14 km) |
| Frodsham to Teteven | 1,424.44 mi (2,292.42 km) |
| Frodsham to Troyan | 1,443.48 mi (2,323.06 km) |
| Frodsham to Tryavna | 1,474.91 mi (2,373.65 km) |
| Frodsham to Tutrakan | 1,469.41 mi (2,364.78 km) |
| Frodsham to Varna | 1,555.94 mi (2,504.04 km) |
