| Prior Lake to Smolyan | 5,354.93 mi (8,617.92 km) |
| Prior Lake to Sofia | 5,250.68 mi (8,450.16 km) |
| Prior Lake to Sopot | 5,300.10 mi (8,529.69 km) |
| Prior Lake to Sozopol | 5,407.56 mi (8,702.63 km) |
| Prior Lake to Sredets | 5,395.27 mi (8,682.85 km) |
| Prior Lake to Stamboliyski | 5,320.30 mi (8,562.20 km) |
| Prior Lake to Stara Zagora | 5,340.93 mi (8,595.39 km) |
| Prior Lake to Svilengrad | 5,394.42 mi (8,681.48 km) |
| Prior Lake to Svishtov | 5,268.33 mi (8,478.57 km) |
| Prior Lake to Targovishte | 5,327.24 mi (8,573.37 km) |
| Prior Lake to Teteven | 5,270.21 mi (8,481.58 km) |
| Prior Lake to Troyan | 5,286.68 mi (8,508.09 km) |
| Prior Lake to Tryavna | 5,312.98 mi (8,550.42 km) |
| Prior Lake to Tutrakan | 5,285.45 mi (8,506.11 km) |
| Prior Lake to Varna | 5,371.06 mi (8,643.88 km) |
