| Ruthen to Smolyan | 1,026.81 mi (1,652.49 km) |
| Ruthen to Sofia | 922.52 mi (1,484.65 km) |
| Ruthen to Sopot | 975.70 mi (1,570.23 km) |
| Ruthen to Sozopol | 1,096.76 mi (1,765.07 km) |
| Ruthen to Sredets | 1,080.82 mi (1,739.42 km) |
| Ruthen to Stamboliyski | 993.26 mi (1,598.50 km) |
| Ruthen to Stara Zagora | 1,019.03 mi (1,639.97 km) |
| Ruthen to Svilengrad | 1,071.38 mi (1,724.22 km) |
| Ruthen to Svishtov | 952.81 mi (1,533.39 km) |
| Ruthen to Targovishte | 1,016.30 mi (1,635.57 km) |
| Ruthen to Teteven | 945.29 mi (1,521.30 km) |
| Ruthen to Troyan | 963.27 mi (1,550.24 km) |
| Ruthen to Tryavna | 992.94 mi (1,597.98 km) |
| Ruthen to Tutrakan | 982.68 mi (1,581.47 km) |
| Ruthen to Varna | 1,069.40 mi (1,721.03 km) |
