| Sorum to Smolyan | 1,394.70 mi (2,244.56 km) |
| Sorum to Sofia | 1,298.64 mi (2,089.96 km) |
| Sorum to Sopot | 1,326.45 mi (2,134.71 km) |
| Sorum to Sozopol | 1,398.89 mi (2,251.29 km) |
| Sorum to Sredets | 1,392.78 mi (2,241.47 km) |
| Sorum to Stamboliyski | 1,356.05 mi (2,182.35 km) |
| Sorum to Stara Zagora | 1,357.03 mi (2,183.92 km) |
| Sorum to Svilengrad | 1,410.25 mi (2,269.58 km) |
| Sorum to Svishtov | 1,275.59 mi (2,052.87 km) |
| Sorum to Targovishte | 1,323.28 mi (2,129.61 km) |
| Sorum to Teteven | 1,300.57 mi (2,093.06 km) |
| Sorum to Troyan | 1,310.79 mi (2,109.51 km) |
| Sorum to Tryavna | 1,326.38 mi (2,134.61 km) |
| Sorum to Tutrakan | 1,273.59 mi (2,049.64 km) |
| Sorum to Varna | 1,353.29 mi (2,177.91 km) |
